Programs & Examples On #Stored procedures

A subroutine available to applications accessing a relational database system.

How to return a table from a Stored Procedure?

It's VERY important to include:

 SET NOCOUNT ON;

into SP, In First line, if you do INSERT in SP, the END SELECT can't return values.

THEN, in vb60 you can:

SET RS = CN.EXECUTE(SQL)

OR:

RS.OPEN CN, RS, SQL

MySQL : transaction within a stored procedure

This is just an explanation not addressed in other answers

At least in recent versions of Mysql, your first query is not committed.

If you query it under the same session you will see the changes, but if you query it from a different session, the changes are not there, they are not committed.

What's going on?

When you open a transaction, and a query inside it fails, the transaction keeps open, it does not commit nor rollback the changes.

So BE CAREFUL, any table/row that was locked with a previous query likeSELECT ... FOR SHARE/UPDATE, UPDATE, INSERT or any other locking-query, keeps locked until that session is killed (and executes a rollback), or until a subsequent query commits it explicitly (COMMIT) or implicitly, thus making the partial changes permanent (which might happen hours later, while the transaction was in a waiting state).

That's why the solution involves declaring handlers to immediately ROLLBACK when an error happens.

Extra

Inside the handler you can also re-raise the error using RESIGNAL, otherwise the stored procedure executes "Successfully"

BEGIN
    DECLARE EXIT HANDLER FOR SQLEXCEPTION 
        BEGIN
            ROLLBACK;
            RESIGNAL;
        END;

    START TRANSACTION;
        #.. Query 1 ..
        #.. Query 2 ..
        #.. Query 3 ..
    COMMIT;
END

How to pass a null variable to a SQL Stored Procedure from C#.net code

Use DBNull.Value Better still, make your stored procedure parameters have defaults of NULL. Or use a Nullable<DateTime> parameter if the parameter will sometimes be a valid DateTime object

Stored Procedure parameter default value - is this a constant or a variable

It has to be a constant - the value has to be computable at the time that the procedure is created, and that one computation has to provide the value that will always be used.

Look at the definition of sys.all_parameters:

default_value sql_variant If has_default_value is 1, the value of this column is the value of the default for the parameter; otherwise, NULL.

That is, whatever the default for a parameter is, it has to fit in that column.


As Alex K pointed out in the comments, you can just do:

CREATE PROCEDURE [dbo].[problemParam] 
    @StartDate INT = NULL,
    @EndDate INT = NULL
AS  
BEGIN
   SET @StartDate = COALESCE(@StartDate,CONVERT(INT,(CONVERT(CHAR(8),GETDATE()-130,112))))

provided that NULL isn't intended to be a valid value for @StartDate.


As to the blog post you linked to in the comments - that's talking about a very specific context - that, the result of evaluating GETDATE() within the context of a single query is often considered to be constant. I don't know of many people (unlike the blog author) who would consider a separate expression inside a UDF to be part of the same query as the query that calls the UDF.

Programmatically retrieve SQL Server stored procedure source that is identical to the source returned by the SQL Server Management Studio gui?

You will have to hand code it, SQL Profiler reveals the following.

SMSE executes quite a long string of queries when it generates the statement.

The following query (or something along its lines) is used to extract the text:

SELECT
NULL AS [Text],
ISNULL(smsp.definition, ssmsp.definition) AS [Definition]
FROM
sys.all_objects AS sp
LEFT OUTER JOIN sys.sql_modules AS smsp ON smsp.object_id = sp.object_id
LEFT OUTER JOIN sys.system_sql_modules AS ssmsp ON ssmsp.object_id = sp.object_id
WHERE
(sp.type = N'P' OR sp.type = N'RF' OR sp.type='PC')and(sp.name=N'#test___________________________________________________________________________________________________________________00003EE1' and SCHEMA_NAME(sp.schema_id)=N'dbo')

It returns the pure CREATE which is then substituted with ALTER in code somewhere.

The SET ANSI NULL stuff and the GO statements and dates are all prepended to this.

Go with sp_helptext, its simpler ...

Can I create view with parameter in MySQL?

I previously came up with a different workaround that doesn't use stored procedures, but instead uses a parameter table and some connection_id() magic.

EDIT (Copied up from comments)

create a table that contains a column called connection_id (make it a bigint). Place columns in that table for parameters for the view. Put a primary key on the connection_id. replace into the parameter table and use CONNECTION_ID() to populate the connection_id value. In the view use a cross join to the parameter table and put WHERE param_table.connection_id = CONNECTION_ID(). This will cross join with only one row from the parameter table which is what you want. You can then use the other columns in the where clause for example where orders.order_id = param_table.order_id.

Temporary tables in stored procedures

According SQL Server 2008 Books You can create local and global temporary tables. Local temporary tables are visible only in the current session, and global temporary tables are visible to all sessions.

'#table_temporal

'##table_global

If a local temporary table is created in a stored procedure or application that can be executed at the same time by several users, the Database Engine must be able to distinguish the tables created by the different users. The Database Engine does this by internally appending a numeric suffix to each local temporary table name.

Then there occurs no problem.

In SQL Server, what does "SET ANSI_NULLS ON" mean?

I guess the main thing here is:

Never user:

  • @anything = NULL
  • @anything <> NULL
  • @anything != null

Always use:

  • @anything IS NULL
  • @anything IS NOT NULL

Run Stored Procedure in SQL Developer?

I wasn't able to get @Alex Poole answers working. However, by trial and error, I found the following works (using SQL Developer version 3.0.04). Posting it here in case it helps others:

SET serveroutput on;

DECLARE
    var InParam1 number;
    var InParam2 number;
    var OutParam1 varchar2(100);
    var OutParam2 varchar2(100);
    var OutParam3 varchar2(100);
    var OutParam4 number;

BEGIN
    /* Assign values to IN parameters */
    InParam1 := 33;
    InParam2 := 89;

    /* Call procedure within package, identifying schema if necessary */
    schema.package.procedure(InParam1, InParam2,
        OutParam1, OutParam2, OutParam3, OutParam4);

    /* Display OUT parameters */
    dbms_output.put_line('OutParam1: ' || OutParam1);
    dbms_output.put_line('OutParam2: ' || OutParam2);
    dbms_output.put_line('OutParam3: ' || OutParam3);
    dbms_output.put_line('OutParam4: ' || OutParam4);
END;

What is a stored procedure?

Think of a situation like this,

  • You have a database with data.
  • There are a number of different applications needed to access that central database, and in the future some new applications too.
  • If you are going to insert the inline database queries to access the central database, inside each application's code individually, then probably you have to duplicate the same query again and again inside different applications' code.
  • In that kind of a situation, you can use stored procedures (SPs). With stored procedures, you are writing number of common queries (procedures) and store them with the central database.
  • Now the duplication of work will never happen as before and the data access and the maintenance will be done centrally.

NOTE:

  • In the above situation, you may wonder "Why cannot we introduce a central data access server to interact with all the applications? Yes. That will be a possible alternative. But,
  • The main advantage with SPs over that approach is, unlike your data-access-code with inline queries, SPs are pre-compiled statements, so they will execute faster. And communication costs (over networks) will be at a minimum.
  • Opposite to that, SPs will add some more load to the database server. If that would be a concern according to the situation, a centralized data access server with inline queries will be a better choice.

How do I make a stored procedure in MS Access?

If you mean the type of procedure you find in SQL Server, prior to 2010, you can't. If you want a query that accepts a parameter, you can use the query design window:

 PARAMETERS SomeParam Text(10);
 SELECT Field FROM Table
 WHERE OtherField=SomeParam

You can also say:

CREATE PROCEDURE ProcedureName
   (Parameter1 datatype, Parameter2 datatype) AS
   SQLStatement

From: http://msdn.microsoft.com/en-us/library/aa139977(office.10).aspx#acadvsql_procs

Note that the procedure contains only one statement.

EXEC sp_executesql with multiple parameters

Here is a simple example:

EXEC sp_executesql @sql, N'@p1 INT, @p2 INT, @p3 INT', @p1, @p2, @p3;

Your call will be something like this

EXEC sp_executesql @statement, N'@LabID int, @BeginDate date, @EndDate date, @RequestTypeID varchar', @LabID, @BeginDate, @EndDate, @RequestTypeID

how to write procedure to insert data in to the table in phpmyadmin?

# Switch delimiter to //, so phpMyAdmin will not execute it line by line.
DELIMITER //
CREATE PROCEDURE usp_rateChapter12

(IN numRating_Chapter INT(11) UNSIGNED, 

 IN txtRating_Chapter VARCHAR(250),

 IN chapterName VARCHAR(250),

 IN addedBy VARCHAR(250)

)

BEGIN
DECLARE numRating_Chapter INT;

DECLARE txtRating_Chapter VARCHAR(250);

DECLARE chapterName1 VARCHAR(250);

DECLARE addedBy1 VARCHAR(250);

DECLARE chapterId INT;

DECLARE studentId INT;

SET chapterName1 = chapterName;
SET addedBy1 = addedBy;

SET chapterId = (SELECT chapterId 
                   FROM chapters 
                   WHERE chaptername = chapterName1);

SET studentId = (SELECT Id 
                   FROM students 
                   WHERE email = addedBy1);

SELECT chapterId;
SELECT studentId;

INSERT INTO ratechapter (rateBy, rateText, rateLevel, chapterRated)
VALUES (studentId, txtRating_Chapter, numRating_Chapter,chapterId);

END //

//DELIMITER;

SQL Server: use CASE with LIKE

One of the first things you need to learn about SQL (and relational databases) is that you shouldn't store multiple values in a single field.

You should create another table and store one value per row.

This will make your querying easier, and your database structure better.

select 
    case when exists (select countryname from itemcountries where yourtable.id=itemcountries.id and countryname = @country) then 'national' else 'regional' end
from yourtable

How to declare an array inside MS SQL Server Stored Procedure?

Great question and great idea, but in SQL you'll need to do this:

For data type datetime, something like this-

declare @BeginDate    datetime = '1/1/2016',
        @EndDate      datetime = '12/1/2016'
create table #months (dates datetime)
declare @var datetime = @BeginDate
   while @var < dateadd(MONTH, +1, @EndDate)
   Begin
          insert into #months Values(@var)
          set @var = Dateadd(MONTH, +1, @var)
   end

If all you really want is numbers, do this-

create table #numbas (digit int)
declare @var int = 1        --your starting digit
    while @var <= 12        --your ending digit
    begin
        insert into #numbas Values(@var)
        set @var = @var +1
    end

Store query result in a variable using in PL/pgSQL

You can use the following example to store a query result in a variable using PL/pgSQL:

 select * into demo from maintenanceactivitytrack ; 
    raise notice'p_maintenanceid:%',demo;

Get resultset from oracle stored procedure

Oracle is not sql server. Try the following in SQL Developer

variable rc refcursor;
exec testproc(:rc2);
print rc2

Inserting into Oracle and retrieving the generated sequence ID

There are no auto incrementing features in Oracle for a column. You need to create a SEQUENCE object. You can use the sequence like:

insert into table(batch_id, ...) values(my_sequence.nextval, ...)

...to return the next number. To find out the last created sequence nr (in your session), you would use:

my_sequence.currval

This site has several complete examples on how to use sequences.

Return value in SQL Server stored procedure

@EmailAddress varchar(200),
@NickName varchar(100),
@Password varchar(150),
@Sex varchar(50),
@Age int,
@EmailUpdates int,
@UserId int OUTPUT
DECLARE @AA INT
SET @AA=(SELECT COUNT(UserId) FROM RegUsers WHERE EmailAddress = @EmailAddress)

IF @AA> 0
    BEGIN
        SET @UserId = 0
    END
ELSE
    BEGIN
        INSERT INTO RegUsers (EmailAddress,NickName,PassWord,Sex,Age,EmailUpdates) VALUES (@EmailAddress,@NickName,@Password,@Sex,@Age,@EmailUpdates)
        SELECT SCOPE_IDENTITY()
    END

END

Check if a string contains a substring in SQL Server 2005, using a stored procedure

You can just use wildcards in the predicate (after IF, WHERE or ON):

@mainstring LIKE '%' + @substring + '%'

or in this specific case

' ' + @mainstring + ' ' LIKE '% ME[., ]%'

(Put the spaces in the quoted string if you're looking for the whole word, or leave them out if ME can be part of a bigger word).

How to use If Statement in Where Clause in SQL?

Nto sure which RDBMS you are using, but if it is SQL Server you could look at rather using a CASE statement

Evaluates a list of conditions and returns one of multiple possible result expressions.

The CASE expression has two formats:

The simple CASE expression compares an expression to a set of simple expressions to determine the result.

The searched CASE expression evaluates a set of Boolean expressions to determine the result.

Both formats support an optional ELSE argument.

How to debug stored procedures with print statements?

Look at this Howto in the MSDN Documentation: Run the Transact-SQL Debugger - it's not with PRINT statements, but maybe it helps you anyway to debug your code.

This YouTube video: SQL Server 2008 T-SQL Debugger shows the use of the Debugger.

=> Stored procedures are written in Transact-SQL. This allows you to debug all Transact-SQL code and so it's like debugging in Visual Studio with defining breakpoints and watching the variables.

Must declare the scalar variable

Here is a simple example :

Create or alter PROCEDURE getPersonCountByLastName (
@lastName varchar(20),
@count int OUTPUT
)
As
Begin
select @count = count(personSid) from Person where lastName like @lastName
End;

Execute below statements in one batch (by selecting all)

1. Declare @count int
2. Exec getPersonCountByLastName kumar, @count output
3. Select @count

When i tried to execute statements 1,2,3 individually, I had the same error. But when executed them all at one time, it worked fine.

The reason is that SQL executes declare, exec statements in different sessions.

Open to further corrections.

How to debug a stored procedure in Toad?

Basic Steps to Debug a Procedure in Toad

  1. Load your Procedure in Toad Editor.
  2. Put debug point on the line where you want to debug.See the first screenshot.
  3. Right click on the editor Execute->Execute PLSQL(Debugger).See the second screeshot.
  4. A window opens up,you need to select the procedure from the left side and pass parameters for that procedure and then click Execute.See the third screenshot.
  5. Now start your debugging check Debug-->Step Over...Add Watch etc.

Reference:Toad Debugger

Debug

Execute In Debug

parameter

Creating stored procedure and SQLite?

Yet, it is possible to fake it using a dedicated table, named for your fake-sp, with an AFTER INSERT trigger. The dedicated table rows contain the parameters for your fake sp, and if it needs to return results you can have a second (poss. temp) table (with name related to the fake-sp) to contain those results. It would require two queries: first to INSERT data into the fake-sp-trigger-table, and the second to SELECT from the fake-sp-results-table, which could be empty, or have a message-field if something went wrong.

optional parameters in SQL Server stored proc?

You can declare like this

CREATE PROCEDURE MyProcName
    @Parameter1 INT = 1,
    @Parameter2 VARCHAR (100) = 'StringValue',
    @Parameter3 VARCHAR (100) = NULL
AS

/* check for the NULL / default value (indicating nothing was passed */
if (@Parameter3 IS NULL)
BEGIN
    /* whatever code you desire for a missing parameter*/
    INSERT INTO ........
END

/* and use it in the query as so*/
SELECT *
FROM Table
WHERE Column = @Parameter

SQL Server stored procedure Nullable parameter

It looks like you're passing in Null for every argument except for PropertyValueID and DropDownOptionID, right? I don't think any of your IF statements will fire if only these two values are not-null. In short, I think you have a logic error.

Other than that, I would suggest two things...

First, instead of testing for NULL, use this kind syntax on your if statements (it's safer)...

    ELSE IF ISNULL(@UnitValue, 0) != 0 AND ISNULL(@UnitOfMeasureID, 0) = 0

Second, add a meaningful PRINT statement before each UPDATE. That way, when you run the sproc in MSSQL, you can look at the messages and see how far it's actually getting.

SQL Server: Query fast, but slow from procedure

I was experiencing this problem. My query looked something like:

select a, b, c from sometable where date > '20140101'

My stored procedure was defined like:

create procedure my_procedure (@dtFrom date)
as
select a, b, c from sometable where date > @dtFrom

I changed the datatype to datetime and voila! Went from 30 minutes to 1 minute!

create procedure my_procedure (@dtFrom datetime)
as
select a, b, c from sometable where date > @dtFrom

Execute a stored procedure in another stored procedure in SQL server

Your sp_test: Return fullname

USE [MY_DB]
GO

IF (OBJECT_ID('[dbo].[sp_test]', 'P') IS NOT NULL)
DROP PROCEDURE [dbo].sp_test;
GO

CREATE PROCEDURE [dbo].sp_test 
@name VARCHAR(20),
@last_name VARCHAR(30),
@full_name VARCHAR(50) OUTPUT
AS

SET @full_name = @name + @last_name;

GO

In your sp_main

...
DECLARE @my_name VARCHAR(20);
DECLARE @my_last_name VARCHAR(30);
DECLARE @my_full_name VARCHAR(50);
...

EXEC sp_test @my_name, @my_last_name, @my_full_name OUTPUT;
...

Paging with Oracle

Just want to summarize the answers and comments. There are a number of ways doing a pagination.

Prior to oracle 12c there were no OFFSET/FETCH functionality, so take a look at whitepaper as the @jasonk suggested. It's the most complete article I found about different methods with detailed explanation of advantages and disadvantages. It would take a significant amount of time to copy-paste them here, so I won't do it.

There is also a good article from jooq creators explaining some common caveats with oracle and other databases pagination. jooq's blogpost

Good news, since oracle 12c we have a new OFFSET/FETCH functionality. OracleMagazine 12c new features. Please refer to "Top-N Queries and Pagination"

You may check your oracle version by issuing the following statement

SELECT * FROM V$VERSION

Insert default value when parameter is null

Don't specify the column or value when inserting and the DEFAULT constaint's value will be substituted for the missing value.

I don't know how this would work in a single column table. I mean: it would, but it wouldn't be very useful.

Escape a string in SQL Server so that it is safe to use in LIKE expression

Do you want to look for strings that include an escape character? For instance you want this:

select * from table where myfield like '%10%%'.

Where you want to search for all fields with 10%? If that is the case then you may use the ESCAPE clause to specify an escape character and escape the wildcard character.

select * from table where myfield like '%10!%%' ESCAPE '!'

Searching for Text within Oracle Stored Procedures

I allways use UPPER(text) like UPPER('%blah%')

SQL Update Multiple Fields FROM via a SELECT Statement

You can use:

UPDATE s SET
  s.Field1 = q.Field1,
  s.Field2 = q.Field2,
  (list of fields...)
FROM (
  SELECT Field1, Field2, (list of fields...)
  FROM ProfilerTest.dbo.BookingDetails 
  WHERE MyID=@MyID
) q
WHERE s.MyID2=@ MyID2

Calling an API from SQL Server stored procedure

I'd recommend using a CLR user defined function, if you already know how to program in C#, then the code would be;

using System.Data.SqlTypes;
using System.Net;

public partial class UserDefinedFunctions
{
 [Microsoft.SqlServer.Server.SqlFunction]
 public static SqlString http(SqlString url)
 {
  var wc = new WebClient();
  var html = wc.DownloadString(url.Value);
  return new SqlString (html);
 }
}

And here's installation instructions; https://blog.dotnetframework.org/2019/09/17/make-a-http-request-from-sqlserver-using-a-clr-udf/

How to check if a variable is NULL, then set it with a MySQL stored procedure?

@last_run_time is a 9.4. User-Defined Variables and last_run_time datetime one 13.6.4.1. Local Variable DECLARE Syntax, are different variables.

Try: SELECT last_run_time;

UPDATE

Example:

/* CODE FOR DEMONSTRATION PURPOSES */
DELIMITER $$

CREATE PROCEDURE `sp_test`()
BEGIN
    DECLARE current_procedure_name CHAR(60) DEFAULT 'accounts_general';
    DECLARE last_run_time DATETIME DEFAULT NULL;
    DECLARE current_run_time DATETIME DEFAULT NOW();

    -- Define the last run time
    SET last_run_time := (SELECT MAX(runtime) FROM dynamo.runtimes WHERE procedure_name = current_procedure_name);

    -- if there is no last run time found then use yesterday as starting point
    IF(last_run_time IS NULL) THEN
        SET last_run_time := DATE_SUB(NOW(), INTERVAL 1 DAY);
    END IF;

    SELECT last_run_time;

    -- Insert variables in table2
    INSERT INTO table2 (col0, col1, col2) VALUES (current_procedure_name, last_run_time, current_run_time);
END$$

DELIMITER ;

How to Execute SQL Server Stored Procedure in SQL Developer?

EXEC proc_name @paramValue1 = 0, @paramValue2 = 'some text';
GO

If the Stored Procedure objective is to perform an INSERT on a table that has an Identity field declared, then the field, in this scenario @paramValue1, should be declared and just pass the value 0, because it will be auto-increment.

IF/ELSE Stored Procedure

Just a tip for this, you don't need the BEGIN and END if it only contains a single statement.

ie:

IF(@Trans_type = 'subscr_signup')    
 set @tmpType = 'premium' 
ELSE iF(@Trans_type = 'subscr_cancel')  
     set    @tmpType = 'basic'

Executing a stored procedure within a stored procedure

T-SQL is not asynchronous, so you really have no choice but to wait until SP2 ends. Luckily, that's what you want.

CREATE PROCEDURE SP1 AS
   EXEC SP2
   PRINT 'Done'

Can I pass column name as input parameter in SQL stored Procedure

As mentioned by MatBailie This is much more safe since it is not a dynamic query and ther are lesser chances of sql injection . I Added one situation where you even want the where clause to be dynamic . XX YY are Columns names

            CREATE PROCEDURE [dbo].[DASH_getTP_under_TP]
    (
    @fromColumnName varchar(10) ,
    @toColumnName varchar(10) , 
    @ID varchar(10)
    )
    as
    begin

    -- this is the column required for where clause 
    declare @colname varchar(50)
    set @colname=case @fromUserType
        when 'XX' then 'XX'
        when 'YY' then 'YY'
        end
        select SelectedColumnId  from (
       select 
            case @toColumnName 
            when 'XX' then tablename.XX
            when 'YY' then tablename.YY
            end as SelectedColumnId,
        From tablename
        where 
        (case @fromUserType 
            when 'XX' then XX
            when 'YY' then YY
        end)= ISNULL(@ID , @colname) 
    ) as tbl1 group by SelectedColumnId 

    end

Convert textbox text to integer

Example:

int x = Convert.ToInt32(this.txtboxname.Text) + 1 //You dont need the "this"
txtboxname.Text = x.ToString();

The x.ToString() makes the integer into string to show that in the text box.

Result:

  1. You put number in the text box.
  2. You click on the button or something running the function.
  3. You see your number just bigger than your number by one in your text box.

:)

How can I determine the status of a job?

I ran into issues on one of my servers querying MSDB tables (aka code listed above) as one of my jobs would come up running, but it was not. There is a system stored procedure that returns the execution status, but one cannot do a insert exec statement without an error. Inside that is another system stored procedure that can be used with an insert exec statement.

INSERT INTO #Job
EXEC master.dbo.xp_sqlagent_enum_jobs 1,dbo

And the table to load it into:

CREATE TABLE #Job 
               (job_id               UNIQUEIDENTIFIER NOT NULL,  
               last_run_date         INT              NOT NULL,  
               last_run_time         INT              NOT NULL,  
               next_run_date         INT              NOT NULL,  
               next_run_time         INT              NOT NULL,  
               next_run_schedule_id  INT              NOT NULL,  
               requested_to_run      INT              NOT NULL, -- BOOL  
               request_source        INT              NOT NULL,  
               request_source_id     sysname          COLLATE database_default NULL,  
               running               INT              NOT NULL, -- BOOL  
               current_step          INT              NOT NULL,  
               current_retry_attempt INT              NOT NULL,  
               job_state             INT              NOT NULL) 

How to schedule a stored procedure in MySQL

I used this query and it worked for me:

CREATE EVENT `exec`
  ON SCHEDULE EVERY 5 SECOND
  STARTS '2013-02-10 00:00:00'
  ENDS '2015-02-28 00:00:00'
  ON COMPLETION NOT PRESERVE ENABLE
DO 
  call delete_rows_links();

Using LIKE operator with stored procedure parameters

EG : COMPARE TO VILLAGE NAME

ALTER PROCEDURE POSMAST
(@COLUMN_NAME VARCHAR(50))
AS
SELECT * FROM TABLE_NAME
WHERE 
village_name LIKE + @VILLAGE_NAME + '%';

SQL Server Insert if not exists

Try below code

ALTER PROCEDURE [dbo].[EmailsRecebidosInsert]
  (@_DE nvarchar(50),
   @_ASSUNTO nvarchar(50),
   @_DATA nvarchar(30) )
AS
BEGIN
   INSERT INTO EmailsRecebidos (De, Assunto, Data)
   select @_DE, @_ASSUNTO, @_DATA
   EXCEPT
   SELECT De, Assunto, Data from EmailsRecebidos
END

Call a stored procedure with another in Oracle

Your stored procedures work as coded. The problem is with the last line, it is unable to invoke either of your stored procedures.

Three choices in SQL*Plus are: call, exec, and an anoymous PL/SQL block.

call appears to be a SQL keyword, and is documented in the SQL Reference. http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_4008.htm#BABDEHHG The syntax diagram indicates that parentesis are required, even when no arguments are passed to the call routine.

CALL test_sp_1();

An anonymous PL/SQL block is PL/SQL that is not inside a named procedure, function, trigger, etc. It can be used to call your procedure.

BEGIN
    test_sp_1;
END;
/

Exec is a SQL*Plus command that is a shortcut for the above anonymous block. EXEC <procedure_name> will be passed to the DB server as BEGIN <procedure_name>; END;

Full example:

SQL> SET SERVEROUTPUT ON
SQL> CREATE OR REPLACE PROCEDURE test_sp 
  2  AS 
  3  BEGIN 
  4      DBMS_OUTPUT.PUT_LINE('Test works'); 
  5  END;
  6  /

Procedure created.

SQL> CREATE OR REPLACE PROCEDURE test_sp_1 
  2  AS
  3  BEGIN
  4      DBMS_OUTPUT.PUT_LINE('Testing'); 
  5      test_sp; 
  6  END;
  7  /

Procedure created.

SQL> CALL test_sp_1();
Testing
Test works

Call completed.

SQL> exec test_sp_1
Testing
Test works

PL/SQL procedure successfully completed.

SQL> begin
  2      test_sp_1;
  3  end;
  4  /
Testing
Test works

PL/SQL procedure successfully completed.

SQL> 

SQL Stored Procedure: If variable is not null, update statement

Another approach when you have many updates would be to use COALESCE:

UPDATE [DATABASE].[dbo].[TABLE_NAME]
SET    
    [ABC]  = COALESCE(@ABC, [ABC]),
    [ABCD] = COALESCE(@ABCD, [ABCD])

Procedure or function !!! has too many arguments specified

For those who might have the same problem as me, I got this error when the DB I was using was actually master, and not the DB I should have been using.

Just put use [DBName] on the top of your script, or manually change the DB in use in the SQL Server Management Studio GUI.

How to declare a variable in SQL Server and use it in the same Stored Procedure

CREATE PROCEDURE AddBrand
@BrandName nvarchar(50) = null,
@CategoryID int = null
AS    
BEGIN

DECLARE @BrandID int = null
SELECT @BrandID = BrandID FROM tblBrand 
WHERE BrandName = @BrandName

INSERT INTO tblBrandinCategory (CategoryID, BrandID) 
       VALUES (@CategoryID, @BrandID)

END

EXEC AddBrand @BrandName = 'BMW', @CategoryId = 1

Pass array to MySQL stored routine

This simulates a character array but you can substitute SUBSTR for ELT to simulate a string array

declare t_tipos varchar(255) default 'ABCDE';
declare t_actual char(1);
declare t_indice integer default 1;
while t_indice<length(t_tipos)+1 do
    set t_actual=SUBSTR(t_tipos,t_indice,1);
        select t_actual;
        set t_indice=t_indice+1;
end while;

Passing an array of data as an input parameter to an Oracle procedure

This is one way to do it:

SQL> set serveroutput on
SQL> CREATE OR REPLACE TYPE MyType AS VARRAY(200) OF VARCHAR2(50);
  2  /

Type created

SQL> CREATE OR REPLACE PROCEDURE testing (t_in MyType) IS
  2  BEGIN
  3    FOR i IN 1..t_in.count LOOP
  4      dbms_output.put_line(t_in(i));
  5    END LOOP;
  6  END;
  7  /

Procedure created

SQL> DECLARE
  2    v_t MyType;
  3  BEGIN
  4    v_t := MyType();
  5    v_t.EXTEND(10);
  6    v_t(1) := 'this is a test';
  7    v_t(2) := 'A second test line';
  8    testing(v_t);
  9  END;
 10  /

this is a test
A second test line

To expand on my comment to @dcp's answer, here's how you could implement the solution proposed there if you wanted to use an associative array:

SQL> CREATE OR REPLACE PACKAGE p IS
  2    TYPE p_type IS TABLE OF VARCHAR2(50) INDEX BY BINARY_INTEGER;
  3  
  4    PROCEDURE pp (inp p_type);
  5  END p;
  6  /

Package created
SQL> CREATE OR REPLACE PACKAGE BODY p IS
  2    PROCEDURE pp (inp p_type) IS
  3    BEGIN
  4      FOR i IN 1..inp.count LOOP
  5        dbms_output.put_line(inp(i));
  6      END LOOP;
  7    END pp;
  8  END p;
  9  /

Package body created
SQL> DECLARE
  2    v_t p.p_type;
  3  BEGIN
  4    v_t(1) := 'this is a test of p';
  5    v_t(2) := 'A second test line for p';
  6    p.pp(v_t);
  7  END;
  8  /

this is a test of p
A second test line for p

PL/SQL procedure successfully completed

SQL> 

This trades creating a standalone Oracle TYPE (which cannot be an associative array) with requiring the definition of a package that can be seen by all in order that the TYPE it defines there can be used by all.

Could not find server 'server name' in sys.servers. SQL Server 2014

At first check out that your linked server is in the list by this query

select name from sys.servers

If it not exists then try to add to the linked server

EXEC sp_addlinkedserver @server = 'SERVER_NAME' --or may be server ip address

After that login to that linked server by

EXEC sp_addlinkedsrvlogin 'SERVER_NAME'
                         ,'false'
                         ,NULL
                         ,'USER_NAME'
                         ,'PASSWORD'

Then you can do whatever you want ,treat it like your local server

exec [SERVER_NAME].[DATABASE_NAME].dbo.SP_NAME @sample_parameter

Finally you can drop that server from linked server list by

sp_dropserver 'SERVER_NAME', 'droplogins'

If it will help you then please upvote.

Declare variable MySQL trigger

All DECLAREs need to be at the top. ie.

delimiter //

CREATE TRIGGER pgl_new_user 
AFTER INSERT ON users FOR EACH ROW
BEGIN
    DECLARE m_user_team_id integer;
    DECLARE m_projects_id integer;
    DECLARE cur CURSOR FOR SELECT project_id FROM user_team_project_relationships WHERE user_team_id = m_user_team_id;

    SET @m_user_team_id := (SELECT id FROM user_teams WHERE name = "pgl_reporters");

    OPEN cur;
        ins_loop: LOOP
            FETCH cur INTO m_projects_id;
            IF done THEN
                LEAVE ins_loop;
            END IF;
            INSERT INTO users_projects (user_id, project_id, created_at, updated_at, project_access) 
            VALUES (NEW.id, m_projects_id, now(), now(), 20);
        END LOOP;
    CLOSE cur;
END//

SQL Server IF NOT EXISTS Usage?

Have you verified that there is in fact a row where Staff_Id = @PersonID? What you've posted works fine in a test script, assuming the row exists. If you comment out the insert statement, then the error is raised.

set nocount on

create table Timesheet_Hours (Staff_Id int, BookedHours int, Posted_Flag bit)

insert into Timesheet_Hours (Staff_Id, BookedHours, Posted_Flag) values (1, 5.5, 0)

declare @PersonID int
set @PersonID = 1

IF EXISTS    
    (
    SELECT 1    
    FROM Timesheet_Hours    
    WHERE Posted_Flag = 1    
        AND Staff_Id = @PersonID    
    )    
    BEGIN
        RAISERROR('Timesheets have already been posted!', 16, 1)
        ROLLBACK TRAN
    END
ELSE
    IF NOT EXISTS
        (
        SELECT 1
        FROM Timesheet_Hours
        WHERE Staff_Id = @PersonID
        )
        BEGIN
            RAISERROR('Default list has not been loaded!', 16, 1)
            ROLLBACK TRAN
        END
    ELSE
        print 'No problems here'

drop table Timesheet_Hours

"could not find stored procedure"

There are 2 causes:

1- store procedure name When you declare store procedure in code make sure you do not exec or execute keyword for example:

C#

string sqlstr="sp_getAllcustomers";// right way to declare it.

string sqlstr="execute sp_getAllCustomers";//wrong way and you will get that error message.

From this code:

MSDBHelp.ExecuteNonQuery(sqlconexec, CommandType.StoredProcedure, sqlexec);

CommandType.StoreProcedure will look for only store procedure name and ExecuteNonQuery will execute the store procedure behind the scene.

2- connection string:

Another cause is the wrong connection string. Look inside the connection string and make sure you have the connection especially the database name and so on.

How to execute an Oracle stored procedure via a database link

The syntax is

EXEC mySchema.myPackage.myProcedure@myRemoteDB( 'someParameter' );

How to detect if a stored procedure already exists

You can write a query as follows:

IF OBJECT_ID('ProcedureName','P') IS NOT NULL
    DROP PROC ProcedureName
GO

CREATE PROCEDURE [dbo].[ProcedureName]
...your query here....

To be more specific on the above syntax:
OBJECT_ID is a unique id number for an object within the database, this is used internally by SQL Server. Since we are passing ProcedureName followed by you object type P which tells the SQL Server that you should find the object called ProcedureName which is of type procedure i.e., P

This query will find the procedure and if it is available it will drop it and create new one.

For detailed information about OBJECT_ID and Object types please visit : SYS.Objects

Truncating a table in a stored procedure

try the below code

execute immediate 'truncate table tablename' ;

if condition in sql server update query

DECLARE @JCnt int=null
SEt @JCnt=(SELECT COUNT( ISNUll(EmpCode,0)) FROM tbl_Employees WHERE EmpCode=1  )

UPDATE #TempCode
SET janCA= CASE WHEN @JCnt>0 THEN (SELECT SUM (ISNUll(Amount,0)) FROM tbl_Salary WHERE Code=1 )ELSE 0 END
WHERE code=1

How do I execute a MS SQL Server stored procedure in java/jsp, returning table data?

Frequently we deal with other fellow java programmers work which create these Stored Procedure. and we do not want to mess around with it. but there is possibility you get the result set where these exec sample return 0 (almost Stored procedure call returning zero).

check this sample :

public void generateINOUT(String USER, int DPTID){

    try {


        conUrl = JdbcUrls + dbServers +";databaseName="+ dbSrcNames+";instance=MSSQLSERVER";

        con = DriverManager.getConnection(conUrl,dbUserNames,dbPasswords);
        //stat = con.createStatement();
        con.setAutoCommit(false); 
        Statement st = con.createStatement(); 

        st.executeUpdate("DECLARE @RC int\n" +
                "DECLARE @pUserID nvarchar(50)\n" +
                "DECLARE @pDepartmentID int\n" +
                "DECLARE @pStartDateTime datetime\n" +
                "DECLARE @pEndDateTime datetime\n" +
                "EXECUTE [AccessManager].[dbo].[SP_GenerateInOutDetailReportSimple] \n" +
                ""+USER +
                "," +DPTID+
                ",'"+STARTDATE +
                "','"+ENDDATE+"'");

        ResultSet rs = st.getGeneratedKeys();

        while (rs.next()){
              String userID = rs.getString("UserID");
              Timestamp timeIN = rs.getTimestamp("timeIN");
              Timestamp timeOUT = rs.getTimestamp ("timeOUT");
              int totTime = rs.getInt ("totalTime");
              int pivot = rs.getInt ("pivotvalue");

              timeINS = sdz.format(timeIN);
              userIN.add(timeINS);

              timeOUTS = sdz.format(timeOUT);
              userOUT.add(timeOUTS);

              System.out.println("User : "+userID+" |IN : "+timeIN+" |OUT : "+timeOUT+"| Total Time : "+totTime+" | PivotValue : "+pivot);
        }

        con.commit();

    }catch (Exception e) {
        e.printStackTrace();
        System.out.println(e);
        if (e.getCause() != null) {
        e.getCause().printStackTrace();}
    }  
}

I came to this solutions after few days trial and error, googling and get confused ;) it execute below Stored Procedure :

USE [AccessManager]
GO
/****** Object:  StoredProcedure [dbo].[SP_GenerateInOutDetailReportSimple]    
Script Date: 04/05/2013 15:54:11 ******/
SET ANSI_NULLS OFF
GO
SET QUOTED_IDENTIFIER ON
GO


ALTER PROCEDURE [dbo].[SP_GenerateInOutDetailReportSimple]
(
@pUserID nvarchar(50),
@pDepartmentID int,
@pStartDateTime datetime,
@pEndDateTime datetime
)
AS


Declare @ErrorCode int
Select @ErrorCode = @@Error

Declare @TransactionCountOnEntry int
If @ErrorCode = 0
Begin
    Select @TransactionCountOnEntry = @@TranCount
    BEGIN TRANSACTION
End


If @ErrorCode = 0
Begin       

    -- Create table variable instead of SQL temp table because report wont pick up the temp table
    DECLARE @tempInOutDetailReport TABLE
    (
        UserID nvarchar(50),
        LogDate datetime,   
        LogDay varchar(20), 
        TimeIN datetime,
        TimeOUT datetime,
        TotalTime int,
        RemarkTimeIn nvarchar(100),
        RemarkTimeOut nvarchar(100),
        TerminalIPTimeIn varchar(50),
        TerminalIPTimeOut varchar(50),
        TerminalSNTimeIn nvarchar(50),
        TerminalSNTimeOut nvarchar(50),
        PivotValue int
    )           

    -- Declare variables for the while loop
    Declare @LogUserID nvarchar(50)
    Declare @LogEventID nvarchar(50)
    Declare @LogTerminalSN nvarchar(50)
    Declare @LogTerminalIP nvarchar(50)
    Declare @LogRemark nvarchar(50)
    Declare @LogTimestamp datetime  
    Declare @LogDay nvarchar(20)

    -- Filter off userID, departmentID, StartDate and EndDate if specified, only process the remaining logs
    -- Note: order by user then timestamp
    Declare LogCursor Cursor For 
    Select distinct access_event_logs.USERID, access_event_logs.EVENTID, 
        access_event_logs.TERMINALSN, access_event_logs.TERMINALIP,
        access_event_logs.REMARKS, access_event_logs.LOCALTIMESTAMP, Datename(dw,access_event_logs.LOCALTIMESTAMP) AS WkDay
    From access_event_logs
        Left Join access_user on access_user.User_ID = access_event_logs.USERID
        Left Join access_user_dept on access_user.User_ID = access_user_dept.User_ID
    Where ((Dept_ID = @pDepartmentID) OR (@pDepartmentID IS NULL))
        And ((access_event_logs.USERID LIKE '%' + @pUserID + '%') OR (@pUserID IS NULL)) 
        And ((access_event_logs.LOCALTIMESTAMP >= @pStartDateTime ) OR (@pStartDateTime IS NULL)) 
        And ((access_event_logs.LOCALTIMESTAMP < DATEADD(day, 1, @pEndDateTime) ) OR (@pEndDateTime IS NULL)) 
        And (access_event_logs.USERID != 'UNKNOWN USER') -- Ignore UNKNOWN USER
    Order by access_event_logs.USERID, access_event_logs.LOCALTIMESTAMP

    Open LogCursor

    Fetch Next 
    From LogCursor
    Into @LogUserID, @LogEventID, @LogTerminalSN, @LogTerminalIP, @LogRemark, @LogTimestamp, @LogDay

    -- Temp storage for IN event details
    Declare @InEventUserID nvarchar(50)
    Declare @InEventDay nvarchar(20)
    Declare @InEventTimestamp datetime
    Declare @InEventRemark nvarchar(100)
    Declare @InEventTerminalIP nvarchar(50)
    Declare @InEventTerminalSN nvarchar(50)

    -- Temp storage for OUT event details
    Declare @OutEventUserID nvarchar(50)        
    Declare @OutEventTimestamp datetime
    Declare @OutEventRemark nvarchar(100)
    Declare @OutEventTerminalIP nvarchar(50)
    Declare @OutEventTerminalSN nvarchar(50)

    Declare @CurrentUser varchar(50) -- used to indicate when we change user group
    Declare @CurrentDay varchar(50) -- used to indicate when we change day
    Declare @FirstEvent int -- indicate the first event we received     
    Declare @ReceiveInEvent int -- indicate we have received an IN event
    Declare @PivotValue int -- everytime we change user or day - we reset it (reporting purpose), if same user..keep increment its value
    Declare @CurrTrigger varchar(50) -- used to keep track of the event of the current event log trigger it is handling 
    Declare @CurrTotalHours int -- used to keep track of total hours of the day of the user

    Declare @FirstInEvent datetime
    Declare @FirstInRemark nvarchar(100)
    Declare @FirstInTerminalIP nvarchar(50)
    Declare @FirstInTerminalSN nvarchar(50)
    Declare @FirstRecord int -- indicate another day of same user

    Set @PivotValue = 0 -- initialised
    Set @CurrentUser = '' -- initialised
    Set @FirstEvent = 1 -- initialised
    Set @ReceiveInEvent = 0 -- initialised  
    Set @CurrTrigger = '' -- Initialised    
    Set @CurrTotalHours = 0 -- initialised
    Set @FirstRecord = 1 -- initialised
    Set @CurrentDay = '' -- initialised

    While @@FETCH_STATUS = 0
    Begin
        -- use to track current log trigger
        Set @CurrTrigger =LOWER(@LogEventID)

        If (@CurrentUser != '' And @CurrentUser != @LogUserID) -- new batch of user
        Begin
            If @ReceiveInEvent = 1  -- previous IN event is not cleared (no OUT is found)
            Begin
                -- Check day
                If (@CurrentDay != @InEventDay) -- change to another day                    
                    Set @PivotValue = 0 -- Reset                        

                Else -- same day
                    Set @PivotValue = @PivotValue + 1 -- increment
                Set @CurrentDay = @InEventDay -- update the day

                -- invalid row (only has IN event)
                Insert into @tempInOutDetailReport( UserID, LogDay, TimeIN, RemarkTimeIn, TerminalIPTimeIn, 
                    TerminalSNTimeIn, PivotValue, LogDate )
                values( @InEventUserID, @InEventDay, @InEventTimestamp, @InEventRemark, @InEventTerminalIP, 
                    @InEventTerminalSN, @PivotValue, DATEADD(HOUR, 0, DATEDIFF(DAY, 0, @InEventTimestamp)))                                                         
            End                 

            Set @FirstEvent = 1 -- Reset flag (we are having a new user group)
            Set @ReceiveInEvent = 0 -- Reset
            Set @PivotValue = 0 -- Reset
            --Set @CurrentDay = '' -- Reset
        End

        If LOWER(@LogEventID) = 'in' -- IN event
        Begin           
            If @ReceiveInEvent = 1  -- previous IN event is not cleared (no OUT is found)
            Begin
                -- Check day
                If (@CurrentDay != @InEventDay) -- change to another day
                Begin
                    Set @PivotValue = 0 -- Reset

                    --Insert into @tempInOutDetailReport( UserID, LogDay, TimeIN, TimeOUT, TotalTime, RemarkTimeIn,
                    --  RemarkTimeOut, TerminalIPTimeIn, TerminalIPTimeOut, TerminalSNTimeIn, TerminalSNTimeOut, PivotValue,
                    --  LogDate)
                    --values( @LogUserID, @CurrentDay, @FirstInEvent, @LogTimestamp,  @CurrTotalHours,
                    --  @FirstInRemark, @LogRemark, @FirstInTerminalIP, @LogTerminalIP, @FirstInTerminalSN, @LogTerminalSN, @PivotValue,
                    --  DATEADD(HOUR, 0, DATEDIFF(DAY, 0, @InEventTimestamp)))  
                End
                Else
                    Set @PivotValue = @PivotValue + 1 -- increment
                Set @CurrentDay = @InEventDay -- update the day


                -- invalid row (only has IN event)
                Insert into @tempInOutDetailReport( UserID, LogDay, TimeIN, RemarkTimeIn, TerminalIPTimeIn, 
                    TerminalSNTimeIn, PivotValue, LogDate )
                values( @InEventUserID, @InEventDay, @InEventTimestamp, @InEventRemark, @InEventTerminalIP, 
                    @InEventTerminalSN, @PivotValue, DATEADD(HOUR, 0, DATEDIFF(DAY, 0, @InEventTimestamp)))                     
            End         

            If((@CurrentDay != @LogDay And @CurrentDay != '') Or (@CurrentUser != @LogUserID And @CurrentUser != '') )
            Begin

                    Insert into @tempInOutDetailReport( UserID, LogDay, TimeIN, TimeOUT, TotalTime, RemarkTimeIn,
                        RemarkTimeOut, TerminalIPTimeIn, TerminalIPTimeOut, TerminalSNTimeIn, TerminalSNTimeOut, PivotValue,
                        LogDate)
                    values( @CurrentUser, @CurrentDay, @FirstInEvent, @OutEventTimestamp, @CurrTotalHours,
                        @FirstInRemark, @OutEventRemark, @FirstInTerminalIP, @OutEventTerminalIP, @FirstInTerminalSN, @LogTerminalSN, @PivotValue,
                        DATEADD(HOUR, 0, DATEDIFF(DAY, 0, @InEventTimestamp)))      

                Set @FirstRecord = 1
            End
            -- Save it
            Set @InEventUserID = @LogUserID                         
            Set @InEventDay = @LogDay
            Set @InEventTimestamp = @LogTimeStamp
            Set @InEventRemark = @LogRemark
            Set @InEventTerminalIP = @LogTerminalIP
            Set @InEventTerminalSN = @LogTerminalSN

            If (@FirstRecord = 1) -- save for first in event record of the day
            Begin
                Set @FirstInEvent = @LogTimestamp
                Set @FirstInRemark = @LogRemark
                Set @FirstInTerminalIP = @LogTerminalIP
                Set @FirstInTerminalSN = @LogTerminalSN
                Set @CurrTotalHours = 0 --initialise total hours for another day
            End

            Set @FirstRecord = 0 -- no more first record of the day
            Set @ReceiveInEvent = 1 -- indicate we have received an "IN" event
            Set @FirstEvent = 0  -- no more "first" event
        End
        Else If LOWER(@LogEventID) = 'out' -- OUT event
        Begin
            If @FirstEvent = 1 -- the first OUT record when change users 
            Begin
                -- Check day
                If (@CurrentDay != @LogDay) -- change to another day
                    Set @PivotValue = 0 -- Reset
                Else
                    Set @PivotValue = @PivotValue + 1 -- increment
                Set @CurrentDay = @LogDay -- update the day

                -- Only an OUT event (no IN event) - invalid record but we show it anyway
                Insert into @tempInOutDetailReport( UserID, LogDay, TimeOUT, RemarkTimeOut, TerminalIPTimeOut, TerminalSNTimeOut,
                    PivotValue, LogDate )
                values( @LogUserID, @LogDay, @LogTimestamp, @LogRemark, @LogTerminalIP, @LogTerminalSN, @PivotValue,
                    DATEADD(HOUR, 0, DATEDIFF(DAY, 0, @LogTimestamp)))                                              

                Set @FirstEvent = 0 -- not "first" anymore
            End
            Else -- Not first event
            Begin       

                If @ReceiveInEvent = 1 -- if there are IN event previously
                Begin           
                    -- Check day
                    If (@CurrentDay != @InEventDay) -- change to another day                        
                        Set @PivotValue = 0 -- Reset                        
                    Else
                        Set @PivotValue = @PivotValue + 1 -- increment
                    Set @CurrentDay = @InEventDay -- update the day     
                    Set @CurrTotalHours = @CurrTotalHours +  DATEDIFF(second,@InEventTimestamp, @LogTimeStamp) -- update total time             

                    Set @OutEventRemark = @LogRemark
                    Set @OutEventTerminalIP = @LogTerminalIP
                    Set @OutEventTerminalSN = @LogTerminalSN
                    Set @OutEventTimestamp = @LogTimestamp          
                    -- valid row
                    --Insert into @tempInOutDetailReport( UserID, LogDay, TimeIN, TimeOUT, TotalTime, RemarkTimeIn,
                    --  RemarkTimeOut, TerminalIPTimeIn, TerminalIPTimeOut, TerminalSNTimeIn, TerminalSNTimeOut, PivotValue,
                    --  LogDate)
                    --values( @LogUserID, @InEventDay, @InEventTimestamp, @LogTimestamp,  Datediff(second, @InEventTimestamp, @LogTimeStamp),
                    --  @InEventRemark, @LogRemark, @InEventTerminalIP, @LogTerminalIP, @InEventTerminalSN, @LogTerminalSN, @PivotValue,
                    --  DATEADD(HOUR, 0, DATEDIFF(DAY, 0, @InEventTimestamp)))                      

                    Set @ReceiveInEvent = 0 -- Reset
                End
                Else -- no IN event previously
                Begin
                    -- Check day
                    If (@CurrentDay != @LogDay) -- change to another day
                        Set @PivotValue = 0 -- Reset
                    Else
                        Set @PivotValue = @PivotValue + 1 -- increment
                    Set @CurrentDay = @LogDay -- update the day                         

                    -- invalid row (only has OUT event)
                    Insert into @tempInOutDetailReport( UserID, LogDay, TimeOUT, RemarkTimeOut, TerminalIPTimeOut, TerminalSNTimeOut,
                        PivotValue, LogDate )
                    values( @LogUserID, @LogDay, @LogTimestamp, @LogRemark, @LogTerminalIP, @LogTerminalSN, @PivotValue,
                        DATEADD(HOUR, 0, DATEDIFF(DAY, 0, @LogTimestamp)) )             
                End             
            End         
        End

        Set @CurrentUser = @LogUserID -- update user        

        Fetch Next 
        From LogCursor
        Into @LogUserID, @LogEventID, @LogTerminalSN, @LogTerminalIP, @LogRemark, @LogTimestamp, @LogDay
    End 

    -- Need to handle the last log if its IN log as it will not be processed by the while loop
    if @CurrTrigger='in'
    Begin 
    -- Check day
            If (@CurrentDay != @InEventDay) -- change to another day
                Set @PivotValue = 0 -- Reset
            Else -- same day
                Set @PivotValue = @PivotValue + 1 -- increment
            Set @CurrentDay = @InEventDay -- update the day

            -- invalid row (only has IN event)
            Insert into @tempInOutDetailReport( UserID, LogDay, TimeIN, RemarkTimeIn, TerminalIPTimeIn, 
                TerminalSNTimeIn, PivotValue, LogDate )
            values( @InEventUserID, @InEventDay, @InEventTimestamp, @InEventRemark, @InEventTerminalIP, 
                    @InEventTerminalSN, @PivotValue, DATEADD(HOUR, 0, DATEDIFF(DAY, 0, @InEventTimestamp)))     
    End
    else if @CurrTrigger = 'out'
    Begin
        Insert into @tempInOutDetailReport( UserID, LogDay, TimeIN, TimeOUT, TotalTime, RemarkTimeIn,
        RemarkTimeOut, TerminalIPTimeIn, TerminalIPTimeOut, TerminalSNTimeIn, TerminalSNTimeOut, PivotValue,
        LogDate)
        values( @LogUserID, @CurrentDay, @FirstInEvent, @LogTimestamp,  @CurrTotalHours,
        @FirstInRemark, @LogRemark, @FirstInTerminalIP, @LogTerminalIP, @FirstInTerminalSN, @LogTerminalSN, @PivotValue,
        DATEADD(HOUR, 0, DATEDIFF(DAY, 0, @InEventTimestamp)))  
    End

    Close LogCursor
    Deallocate LogCursor

    Select * 
    From @tempInOutDetailReport tempTable
        Left Join access_user on access_user.User_ID = tempTable.UserID
    Order By tempTable.UserID, LogDate


End



If @@TranCount > @TransactionCountOnEntry
Begin
     If @ErrorCode = 0
            COMMIT TRANSACTION
     Else
            ROLLBACK TRANSACTION
End

return @ErrorCode

you will get the "java SQL Code" by right click on stored procedure in your database. something like this :

DECLARE @RC int
DECLARE @pUserID nvarchar(50)
DECLARE @pDepartmentID int
DECLARE @pStartDateTime datetime
DECLARE @pEndDateTime datetime

-- TODO: Set parameter values here.

EXECUTE @RC = [AccessManager].[dbo].[SP_GenerateInOutDetailReportSimple] 
@pUserID,@pDepartmentID,@pStartDateTime,@pEndDateTime
GO

check the query String I've done, that is your homework ;) so sorry answering this long, this is my first answer since I register few weeks ago to get answer.

Insert current date into a date column using T-SQL?

If you're looking to store the information in a table, you need to use an INSERT or an UPDATE statement. It sounds like you need an UPDATE statement:

UPDATE  SomeTable
SET     SomeDateField = GETDATE()
WHERE   SomeID = @SomeID

Granting Rights on Stored Procedure to another user of Oracle

On your DBA account, give USERB the right to create a procedure using grant grant create any procedure to USERB

The procedure will look

CREATE OR REPLACE PROCEDURE USERB.USERB_PROCEDURE
--Must add the line below
AUTHID CURRENT_USER AS
  BEGIN
  --DO SOMETHING HERE
  END
END

GRANT EXECUTE ON USERB.USERB_PROCEDURE TO USERA

I know this is a very old question but I am hoping I could chip it a bit.

How to call a stored procedure (with parameters) from another stored procedure without temp table

You can call a stored procedure from another stored procedure by using the EXECUTE command.

Say your procedure is X. Then in X you can use

EXECUTE PROCEDURE Y () RETURNING_VALUES RESULT;"

mysql stored-procedure: out parameter

Unable to replicate. It worked fine for me:

mysql> CALL my_sqrt(4, @out_value);
Query OK, 0 rows affected (0.00 sec)

mysql> SELECT @out_value;
+------------+
| @out_value |
+------------+
| 2          | 
+------------+
1 row in set (0.00 sec)

Perhaps you should paste the entire error message instead of summarizing it.

How to call a MySQL stored procedure from within PHP code?

I now found solution by using mysqli instead of mysql.

<?php 

// enable error reporting
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
//connect to database
$connection = mysqli_connect("hostname", "user", "password", "db", "port");

//run the store proc
$result = mysqli_query($connection, "CALL StoreProcName");

//loop the result set
while ($row = mysqli_fetch_array($result)){     
  echo $row[0] . " - " . + $row[1]; 
}

I found that many people seem to have a problem with using mysql_connect, mysql_query and mysql_fetch_array.

Execute Immediate within a stored procedure keeps giving insufficient priviliges error

Oracle's security model is such that when executing dynamic SQL using Execute Immediate (inside the context of a PL/SQL block or procedure), the user does not have privileges to objects or commands that are granted via role membership. Your user likely has "DBA" role or something similar. You must explicitly grant "drop table" permissions to this user. The same would apply if you were trying to select from tables in another schema (such as sys or system) - you would need to grant explicit SELECT privileges on that table to this user.

What is the T-SQL syntax to connect to another SQL Server?

If I were to paraphrase the question - is it possible to pick server context for query execution in the DDL - the answer is no. Only database context can be programmatically chosen with USE. (having already preselected the server context externally)

Linked server and OPEN QUERY can give access to the DDL but require somewhat a rewrite of your code to encapsulate as a string - making it difficult to develop/debug.

Alternately you could resort to an external driver program to pickup SQL files to send to the remote server via OPEN QUERY. However in most cases you might as well have connected to the server directly in the 1st place to evaluate the DDL.

MySQL Stored procedure variables from SELECT statements

Corrected a few things and added an alternative select - delete as appropriate.

DELIMITER |

CREATE PROCEDURE getNearestCities
(
IN p_cityID INT -- should this be int unsigned ?
)
BEGIN

DECLARE cityLat FLOAT; -- should these be decimals ?
DECLARE cityLng FLOAT;

    -- method 1
    SELECT lat,lng into cityLat, cityLng FROM cities WHERE cities.cityID = p_cityID;

    SELECT 
     b.*, 
     HAVERSINE(cityLat,cityLng, b.lat, b.lng) AS dist 
    FROM 
     cities b 
    ORDER BY 
     dist 
    LIMIT 10;

    -- method 2
    SELECT   
      b.*, 
      HAVERSINE(a.lat, a.lng, b.lat, b.lng) AS dist
    FROM     
      cities AS a
    JOIN cities AS b on a.cityID = p_cityID
    ORDER BY 
      dist
    LIMIT 10;

END |

delimiter ;

T-SQL stored procedure that accepts multiple Id values

You could use XML.

E.g.

declare @xmlstring as  varchar(100) 
set @xmlstring = '<args><arg value="42" /><arg2>-1</arg2></args>' 

declare @docid int 

exec sp_xml_preparedocument @docid output, @xmlstring

select  [id],parentid,nodetype,localname,[text]
from    openxml(@docid, '/args', 1) 

The command sp_xml_preparedocument is built in.

This would produce the output:

id  parentid    nodetype    localname   text
0   NULL        1           args        NULL
2   0           1           arg         NULL
3   2           2           value       NULL
5   3           3           #text       42
4   0           1           arg2        NULL
6   4           3           #text       -1

which has all (more?) of what you you need.

How can I check if a View exists in a Database?

For people checking the existence to drop View use this

From SQL Server 2016 CTP3 you can use new DIE statements instead of big IF wrappers

syntax

DROP VIEW [ IF EXISTS ] [ schema_name . ] view_name [ ...,n ] [ ; ]

Query :

DROP VIEW IF EXISTS view_name

More info here

how to display full stored procedure code?

If anyone wonders how to quickly query catalog tables and make use of the pg_get_functiondef() function here's the sample query:

SELECT n.nspname AS schema
      ,proname AS fname
      ,proargnames AS args
      ,t.typname AS return_type
      ,d.description
      ,pg_get_functiondef(p.oid) as definition
--      ,CASE WHEN NOT p.proisagg THEN pg_get_functiondef(p.oid)
--            ELSE 'pg_get_functiondef() can''t be used with aggregate functions'
--       END as definition
  FROM pg_proc p
  JOIN pg_type t
    ON p.prorettype = t.oid
  LEFT OUTER
  JOIN pg_description d
    ON p.oid = d.objoid
  LEFT OUTER
  JOIN pg_namespace n
    ON n.oid = p.pronamespace
 WHERE NOT p.proisagg
   AND n.nspname~'<$SCHEMA_NAME_PATTERN>'
   AND proname~'<$FUNCTION_NAME_PATTERN>'

Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '='

The default collation for stored procedure parameters is utf8_general_ci and you can't mix collations, so you have four options:

Option 1: add COLLATE to your input variable:

SET @rUsername = ‘aname’ COLLATE utf8_unicode_ci; -- COLLATE added
CALL updateProductUsers(@rUsername, @rProductID, @rPerm);

Option 2: add COLLATE to the WHERE clause:

CREATE PROCEDURE updateProductUsers(
    IN rUsername VARCHAR(24),
    IN rProductID INT UNSIGNED,
    IN rPerm VARCHAR(16))
BEGIN
    UPDATE productUsers
        INNER JOIN users
        ON productUsers.userID = users.userID
        SET productUsers.permission = rPerm
        WHERE users.username = rUsername COLLATE utf8_unicode_ci -- COLLATE added
        AND productUsers.productID = rProductID;
END

Option 3: add it to the IN parameter definition:

CREATE PROCEDURE updateProductUsers(
    IN rUsername VARCHAR(24) COLLATE utf8_unicode_ci, -- COLLATE added
    IN rProductID INT UNSIGNED,
    IN rPerm VARCHAR(16))
BEGIN
    UPDATE productUsers
        INNER JOIN users
        ON productUsers.userID = users.userID
        SET productUsers.permission = rPerm
        WHERE users.username = rUsername
        AND productUsers.productID = rProductID;
END

Option 4: alter the field itself:

ALTER TABLE users CHARACTER SET utf8 COLLATE utf8_general_ci;

Unless you need to sort data in Unicode order, I would suggest altering all your tables to use utf8_general_ci collation, as it requires no code changes, and will speed sorts up slightly.

UPDATE: utf8mb4/utf8mb4_unicode_ci is now the preferred character set/collation method. utf8_general_ci is advised against, as the performance improvement is negligible. See https://stackoverflow.com/a/766996/1432614

How do I search an SQL Server database for a string?

Here is how you can search the database in Swift using the FMDB library.

First, go to this link and add this to your project: FMDB. When you have done that, then here is how you do it. For example, you have a table called Person, and you have firstName and secondName and you want to find data by first name, here is a code for that:

    func loadDataByfirstName(firstName : String, completion: @escaping CompletionHandler){
    if isDatabaseOpened {
        let query = "select * from Person where firstName like '\(firstName)'"
        do {
            let results = try database.executeQuery(query, values: [firstName])
            while results.next() {
                let firstName = results.string(forColumn: "firstName") ?? ""
                let lastName = results.string(forColumn: "lastName") ?? ""
                let newPerson = Person(firstName: firstName, lastName: lastName)
                self.persons.append(newPerson)
            }
            completion(true)
        }catch let err {
            completion(false)
            print(err.localizedDescription)
        }
        database.close()
    }
}

Then in your ViewController you will write this to find the person detail you are looking for:

  override func viewWillAppear(_ animated: Bool) {
     super.viewWillAppear(animated)
      SQLManager.instance.openDatabase { (success) in
        if success {
            SQLManager.instance.loadDataByfirstName(firstName: "Hardi") { (success) in
                if success {
                    // You have your data Here
                }
            }
        }
    }
}

If else in stored procedure sql server

You can try below Procedure Sql:

Create Procedure sp_ADD_USER_EXTRANET_CLIENT_INDEX_PHY
(
@ParLngId int output
)
as
Begin
    -- Min will return only 1 value, if 'Extranet Client' is found
    -- IsNull will take care of 'Extranet Client' not found, returning 0 instead of Null
    -- But T_Param must be a Master Table with ParStrNom having a Unique Index, if so Min is not reqd at all
    -- But 'PHY', 'Extranet Client' suggests that Unique Key has 2 columns, not just ParStrNom

    SET @ParLngId = IsNull((Select Min (ParLngId) from T_Param where ParStrNom = 'Extranet Client'), 0);

    -- Nothing changed below

    if  (@ParLngId = 0)
        Begin
            Insert Into T_Param values ('PHY', 'Extranet Client', Null, Null, 'T', 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 1, NULL, NULL, NULL)
            SET @ParLngId = @@IDENTITY
    End

    Return  @ParLngId
    End

How to pass an array into a SQL Server stored procedure

Context is always important, such as the size and complexity of the array. For small to mid-size lists, several of the answers posted here are just fine, though some clarifications should be made:

  • For splitting a delimited list, a SQLCLR-based splitter is the fastest. There are numerous examples around if you want to write your own, or you can just download the free SQL# library of CLR functions (which I wrote, but the String_Split function, and many others, are completely free).
  • Splitting XML-based arrays can be fast, but you need to use attribute-based XML, not element-based XML (which is the only type shown in the answers here, though @AaronBertrand's XML example is the best as his code is using the text() XML function. For more info (i.e. performance analysis) on using XML to split lists, check out "Using XML to pass lists as parameters in SQL Server" by Phil Factor.
  • Using TVPs is great (assuming you are using at least SQL Server 2008, or newer) as the data is streamed to the proc and shows up pre-parsed and strongly-typed as a table variable. HOWEVER, in most cases, storing all of the data in DataTable means duplicating the data in memory as it is copied from the original collection. Hence using the DataTable method of passing in TVPs does not work well for larger sets of data (i.e. does not scale well).
  • XML, unlike simple delimited lists of Ints or Strings, can handle more than one-dimensional arrays, just like TVPs. But also just like the DataTable TVP method, XML does not scale well as it more than doubles the datasize in memory as it needs to additionally account for the overhead of the XML document.

With all of that said, IF the data you are using is large or is not very large yet but consistently growing, then the IEnumerable TVP method is the best choice as it streams the data to SQL Server (like the DataTable method), BUT doesn't require any duplication of the collection in memory (unlike any of the other methods). I posted an example of the SQL and C# code in this answer:

Pass Dictionary to Stored Procedure T-SQL

Stored procedure return into DataSet in C# .Net

Try this

    DataSet ds = new DataSet("TimeRanges");
    using(SqlConnection conn = new SqlConnection("ConnectionString"))
    {               
            SqlCommand sqlComm = new SqlCommand("Procedure1", conn);               
            sqlComm.Parameters.AddWithValue("@Start", StartTime);
            sqlComm.Parameters.AddWithValue("@Finish", FinishTime);
            sqlComm.Parameters.AddWithValue("@TimeRange", TimeRange);

            sqlComm.CommandType = CommandType.StoredProcedure;

            SqlDataAdapter da = new SqlDataAdapter();
            da.SelectCommand = sqlComm;

            da.Fill(ds);
     }

SQL Server - SELECT FROM stored procedure

You must read about OPENROWSET and OPENQUERY

SELECT  * 
INTO    #tmp FROM    
OPENQUERY(YOURSERVERNAME, 'EXEC MyProc @parameters')

MySQL stored procedure vs function, which would I use when?

The most general difference between procedures and functions is that they are invoked differently and for different purposes:

  1. A procedure does not return a value. Instead, it is invoked with a CALL statement to perform an operation such as modifying a table or processing retrieved records.
  2. A function is invoked within an expression and returns a single value directly to the caller to be used in the expression.
  3. You cannot invoke a function with a CALL statement, nor can you invoke a procedure in an expression.

Syntax for routine creation differs somewhat for procedures and functions:

  1. Procedure parameters can be defined as input-only, output-only, or both. This means that a procedure can pass values back to the caller by using output parameters. These values can be accessed in statements that follow the CALL statement. Functions have only input parameters. As a result, although both procedures and functions can have parameters, procedure parameter declaration differs from that for functions.
  2. Functions return value, so there must be a RETURNS clause in a function definition to indicate the data type of the return value. Also, there must be at least one RETURN statement within the function body to return a value to the caller. RETURNS and RETURN do not appear in procedure definitions.

    • To invoke a stored procedure, use the CALL statement. To invoke a stored function, refer to it in an expression. The function returns a value during expression evaluation.

    • A procedure is invoked using a CALL statement, and can only pass back values using output variables. A function can be called from inside a statement just like any other function (that is, by invoking the function's name), and can return a scalar value.

    • Specifying a parameter as IN, OUT, or INOUT is valid only for a PROCEDURE. For a FUNCTION, parameters are always regarded as IN parameters.

    If no keyword is given before a parameter name, it is an IN parameter by default. Parameters for stored functions are not preceded by IN, OUT, or INOUT. All function parameters are treated as IN parameters.

To define a stored procedure or function, use CREATE PROCEDURE or CREATE FUNCTION respectively:

CREATE PROCEDURE proc_name ([parameters])
 [characteristics]
 routine_body


CREATE FUNCTION func_name ([parameters])
 RETURNS data_type       // diffrent
 [characteristics]
 routine_body

A MySQL extension for stored procedure (not functions) is that a procedure can generate a result set, or even multiple result sets, which the caller processes the same way as the result of a SELECT statement. However, the contents of such result sets cannot be used directly in expression.

Stored routines (referring to both stored procedures and stored functions) are associated with a particular database, just like tables or views. When you drop a database, any stored routines in the database are also dropped.

Stored procedures and functions do not share the same namespace. It is possible to have a procedure and a function with the same name in a database.

In Stored procedures dynamic SQL can be used but not in functions or triggers.

SQL prepared statements (PREPARE, EXECUTE, DEALLOCATE PREPARE) can be used in stored procedures, but not stored functions or triggers. Thus, stored functions and triggers cannot use Dynamic SQL (where you construct statements as strings and then execute them). (Dynamic SQL in MySQL stored routines)

Some more interesting differences between FUNCTION and STORED PROCEDURE:

  1. (This point is copied from a blogpost.) Stored procedure is precompiled execution plan where as functions are not. Function Parsed and compiled at runtime. Stored procedures, Stored as a pseudo-code in database i.e. compiled form.

  2. (I'm not sure for this point.)
    Stored procedure has the security and reduces the network traffic and also we can call stored procedure in any no. of applications at a time. reference

  3. Functions are normally used for computations where as procedures are normally used for executing business logic.

  4. Functions Cannot affect the state of database (Statements that do explicit or implicit commit or rollback are disallowed in function) Whereas Stored procedures Can affect the state of database using commit etc.
    refrence: J.1. Restrictions on Stored Routines and Triggers

  5. Functions can't use FLUSH statements whereas Stored procedures can do.

  6. Stored functions cannot be recursive Whereas Stored procedures can be. Note: Recursive stored procedures are disabled by default, but can be enabled on the server by setting the max_sp_recursion_depth server system variable to a nonzero value. See Section 5.2.3, “System Variables”, for more information.

  7. Within a stored function or trigger, it is not permitted to modify a table that is already being used (for reading or writing) by the statement that invoked the function or trigger. Good Example: How to Update same table on deletion in MYSQL?

Note: that although some restrictions normally apply to stored functions and triggers but not to stored procedures, those restrictions do apply to stored procedures if they are invoked from within a stored function or trigger. For example, although you can use FLUSH in a stored procedure, such a stored procedure cannot be called from a stored function or trigger.

How to assign an exec result to a sql variable?

declare @EventId int

CREATE TABLE #EventId (EventId int)

insert into #EventId exec rptInputEventId

set @EventId = (select * from #EventId)

drop table #EventId 

Postgres FOR LOOP

I just ran into this question and, while it is old, I figured I'd add an answer for the archives. The OP asked about for loops, but their goal was to gather a random sample of rows from the table. For that task, Postgres 9.5+ offers the TABLESAMPLE clause on WHERE. Here's a good rundown:

https://www.2ndquadrant.com/en/blog/tablesample-in-postgresql-9-5-2/

I tend to use Bernoulli as it's row-based rather than page-based, but the original question is about a specific row count. For that, there's a built-in extension:

https://www.postgresql.org/docs/current/tsm-system-rows.html

CREATE EXTENSION tsm_system_rows;

Then you can grab whatever number of rows you want:

select * from playtime tablesample system_rows (15);

Stored procedure - return identity as output parameter or scalar

I prefer to return the identity value as an output parameter. The result of the SP should indicate whether it succeeded or not. A value of 0 indicates the SP successfully completed, a non-zero value indicates an error. Also, if you ever need to make a change and return an additional value from the SP you don't need to make any changes other than adding an additional output parameter.

How to convert int to char with leading zeros?

You can also use FORMAT() function introduced in SQL Server 2012. http://technet.microsoft.com/library/hh213505.aspx

DECLARE @number1 INT, @number2 INT

SET @number1 = 1
SET @number2 = 867

SELECT FORMAT(@number1, 'd10')
SELECT FORMAT(@number2, 'd10')

Calling stored procedure from another stored procedure SQL Server

You could add an OUTPUT parameter to test2, and set it to the new id straight after the INSERT using:

SELECT @NewIdOutputParam = SCOPE_IDENTITY()

Then in test1, retrieve it like so:

DECLARE @NewId INTEGER
EXECUTE test2 @NewId OUTPUT
-- Now use @NewId as needed

MySQL: Selecting multiple fields into multiple variables in a stored procedure

Alternatively to Martin's answer, you could also add the INTO part at the end of the query to make the query more readable:

SELECT Id, dateCreated FROM products INTO iId, dCreate

How to View Oracle Stored Procedure using SQLPlus?

check your casing, the name is typically stored in upper case

SELECT * FROM all_source WHERE name = 'DAILY_UPDATE' ORDER BY TYPE, LINE;

Execute a SQL Stored Procedure and process the results

My Stored Procedure Requires 2 Parameters and I needed my function to return a datatable here is 100% working code

Please make sure that your procedure return some rows

Public Shared Function Get_BillDetails(AccountNumber As String) As DataTable
    Try
        Connection.Connect()
        debug.print("Look up account number " & AccountNumber)
        Dim DP As New SqlDataAdapter("EXEC SP_GET_ACCOUNT_PAYABLES_GROUP  '" & AccountNumber & "' , '" & 08/28/2013 &"'", connection.Con)
        Dim DST As New DataSet
        DP.Fill(DST)
        Return DST.Tables(0)      
    Catch ex As Exception
        Return Nothing
    End Try
End Function

Stored Procedure error ORA-06550

Could you try this one:

create or replace 
procedure point_triangle
IS
BEGIN
  FOR thisteam in (select P.FIRSTNAME,P.LASTNAME, SUM(P.PTS) S from PLAYERREGULARSEASON P  where P.TEAM = 'IND'  group by P.FIRSTNAME, P.LASTNAME order by SUM(P.PTS) DESC)
  LOOP
    dbms_output.put_line(thisteam.FIRSTNAME|| ' ' || thisteam.LASTNAME  || ':' || thisteam.S);
  END LOOP;

END;

Return multiple fields as a record in PostgreSQL with PL/pgSQL

you can do this using OUT parameter and CROSS JOIN

CREATE OR REPLACE FUNCTION get_object_fields(my_name text, OUT f1 text, OUT f2 text)
AS $$
SELECT t1.name, t2.name
FROM  table1 t1 
CROSS JOIN table2 t2 
WHERE t1.name = my_name AND t2.name = my_name;
$$ LANGUAGE SQL;

then use it as a table:

select get_object_fields( 'Pending') ;
get_object_fields
-------------------
(Pending,code)
(1 row)

or

select * from get_object_fields( 'Pending');
f1    |   f
---------+---------
Pending | code
(1 row)

or

select (get_object_fields( 'Pending')).f1;
f1
---------
Pending
(1 row)

How to Execute stored procedure from SQL Plus?

You have two options, a PL/SQL block or SQL*Plus bind variables:

var z number

execute  my_stored_proc (-1,2,0.01,:z)

print z

Search text in stored procedure in SQL Server

 SELECT DISTINCT OBJECT_NAME([id]),[text] 

 FROM syscomments   

 WHERE [id] IN (SELECT [id] FROM sysobjects WHERE xtype IN 

 ('TF','FN','V','P') AND status >= 0) AND  

 ([text] LIKE '%text to be search%' ) 

OBJECT_NAME([id]) --> Object Name (View,Store Procedure,Scalar Function,Table function name)

id (int) = Object identification number

xtype char(2) Object type. Can be one of the following object types:

FN = Scalar function

P = Stored procedure

V = View

TF = Table function

What is the difference between function and procedure in PL/SQL?

The following are the major differences between procedure and function,

  1. Procedure is named PL/SQL block which performs one or more tasks. where function is named PL/SQL block which performs a specific action.
  2. Procedure may or may not return value where as function should return one value.
  3. we can call functions in select statement where as procedure we cant.

How can I use Oracle SQL developer to run stored procedures?

There are two possibilities, both from Quest Software, TOAD & SQL Navigator:

Here is the TOAD Freeware download: http://www.toadworld.com/Downloads/FreewareandTrials/ToadforOracleFreeware/tabid/558/Default.aspx

And the SQL Navigator (trial version): http://www.quest.com/sql-navigator/software-downloads.aspx

How do you debug MySQL stored procedures?

There are GUI tools for debugging stored procedures / functions and scripts in MySQL. A decent tool that dbForge Studio for MySQL, has rich functionality and stability.

Insert results of a stored procedure into a temporary table

If the results table of your stored proc is too complicated to type out the "create table" statement by hand, and you can't use OPENQUERY OR OPENROWSET, you can use sp_help to generate the list of columns and data types for you. Once you have the list of columns, it's just a matter of formatting it to suit your needs.

Step 1: Add "into #temp" to the output query (e.g. "select [...] into #temp from [...]").

The easiest way is to edit the output query in the proc directly. if you can't change the stored proc, you can copy the contents into a new query window and modify the query there.

Step 2: Run sp_help on the temp table. (e.g. "exec tempdb..sp_help #temp")

After creating the temp table, run sp_help on the temp table to get a list of the columns and data types including the size of varchar fields.

Step 3: Copy the data columns & types into a create table statement

I have an Excel sheet that I use to format the output of sp_help into a "create table" statement. You don't need anything that fancy, just copy and paste into your SQL editor. Use the column names, sizes, and types to construct a "Create table #x [...]" or "declare @x table [...]" statement which you can use to INSERT the results of the stored procedure.

Step 4: Insert into the newly created table

Now you'll have a query that's like the other solutions described in this thread.

DECLARE @t TABLE 
(
   --these columns were copied from sp_help
   COL1 INT,
   COL2 INT   
)

INSERT INTO @t 
Exec spMyProc 

This technique can also be used to convert a temp table (#temp) to a table variable (@temp). While this may be more steps than just writing the create table statement yourself, it prevents manual error such as typos and data type mismatches in large processes. Debugging a typo can take more time than writing the query in the first place.

Stored procedure with default parameters

I'd do this one of two ways. Since you're setting your start and end dates in your t-sql code, i wouldn't ask for parameters in the stored proc

Option 1

Create Procedure [Test] AS
    DECLARE @StartDate varchar(10)
    DECLARE @EndDate varchar(10)
    Set @StartDate = '201620' --Define start YearWeek
    Set @EndDate  = (SELECT CAST(DATEPART(YEAR,getdate()) AS varchar(4)) + CAST(DATEPART(WEEK,getdate())-1 AS varchar(2)))

SELECT 
*
FROM
    (SELECT DISTINCT [YEAR],[WeekOfYear] FROM [dbo].[DimDate] WHERE [Year]+[WeekOfYear] BETWEEN @StartDate AND @EndDate ) dimd
    LEFT JOIN [Schema].[Table1] qad ON (qad.[Year]+qad.[Week of the Year]) = (dimd.[Year]+dimd.WeekOfYear)

Option 2

Create Procedure [Test] @StartDate varchar(10),@EndDate varchar(10) AS

SELECT 
*
FROM
    (SELECT DISTINCT [YEAR],[WeekOfYear] FROM [dbo].[DimDate] WHERE [Year]+[WeekOfYear] BETWEEN @StartDate AND @EndDate ) dimd
    LEFT JOIN [Schema].[Table1] qad ON (qad.[Year]+qad.[Week of the Year]) = (dimd.[Year]+dimd.WeekOfYear)

Then run exec test '2016-01-01','2016-01-25'

How do I execute a stored procedure once for each row returned by query?

You can do it with a dynamic query.

declare @cadena varchar(max) = ''
select @cadena = @cadena + 'exec spAPI ' + ltrim(id) + ';'
from sysobjects;
exec(@cadena);

How to call Stored Procedures with EntityFramework?

This is an example of querying MySQL procedure using Entity Framework

This is the definition of my Stored Procedure in MySQL:

CREATE PROCEDURE GetUpdatedAds (
    IN curChangeTracker BIGINT
    IN PageSize INT
) 
BEGIN
   -- select some recored...
END;

And this is how I query it using Entity Framework:

 var curChangeTracker = new SqlParameter("@curChangeTracker", MySqlDbType.Int64).Value = 0;
 var pageSize = new SqlParameter("@PageSize", (MySqlDbType.Int64)).Value = 100;

 var res = _context.Database.SqlQuery<MyEntityType>($"call GetUpdatedAds({curChangeTracker}, {pageSize})");

Note that I am using C# String Interpolation to build my Query String.

How to use a DataAdapter with stored procedure and parameter

    SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
        builder.DataSource = <sql server name>;
        builder.UserID = <user id>; //User id used to login into SQL
        builder.Password = <password>; //password used to login into SQL
        builder.InitialCatalog = <database name>; //Name of Database

        DataTable orderTable = new DataTable();

        //<sp name> stored procedute name which you want to exceute
        using (var con = new SqlConnection(builder.ConnectionString))
        using (SqlCommand cmd = new SqlCommand(<sp name>, con)) 
        using (var da = new SqlDataAdapter(cmd))
        {
            cmd.CommandType = System.Data.CommandType.StoredProcedure;
            //Data adapter(da) fills the data retuned from stored procedure 
           //into orderTable
            da.Fill(orderTable);
        }

Execute php file from another php

exec is shelling to the operating system, and unless the OS has some special way of knowing how to execute a file, then it's going to default to treating it as a shell script or similar. In this case, it has no idea how to run your php file. If this script absolutely has to be executed from a shell, then either execute php passing the filename as a parameter, e.g

exec ('/usr/local/bin/php -f /opt/lampp/htdocs/.../name.php)') ;

or use the punct at the top of your php script

#!/usr/local/bin/php
<?php ... ?>

When is layoutSubviews called?

I had a similar question, but wasn't satisfied with the answer (or any I could find on the net), so I tried it in practice and here is what I got:

  • init does not cause layoutSubviews to be called (duh)
  • addSubview: causes layoutSubviews to be called on the view being added, the view it’s being added to (target view), and all the subviews of the target
  • view setFrame intelligently calls layoutSubviews on the view having its frame set only if the size parameter of the frame is different
  • scrolling a UIScrollView causes layoutSubviews to be called on the scrollView, and its superview
  • rotating a device only calls layoutSubview on the parent view (the responding viewControllers primary view)
  • Resizing a view will call layoutSubviews on its superview

My results - http://blog.logichigh.com/2011/03/16/when-does-layoutsubviews-get-called/

How to use Checkbox inside Select Option

You cannot place checkbox inside select element but you can get the same functionality by using HTML, CSS and JavaScript. Here is a possible working solution. The explanation follows.

enter image description here


Code:

_x000D_
_x000D_
var expanded = false;_x000D_
_x000D_
function showCheckboxes() {_x000D_
  var checkboxes = document.getElementById("checkboxes");_x000D_
  if (!expanded) {_x000D_
    checkboxes.style.display = "block";_x000D_
    expanded = true;_x000D_
  } else {_x000D_
    checkboxes.style.display = "none";_x000D_
    expanded = false;_x000D_
  }_x000D_
}
_x000D_
.multiselect {_x000D_
  width: 200px;_x000D_
}_x000D_
_x000D_
.selectBox {_x000D_
  position: relative;_x000D_
}_x000D_
_x000D_
.selectBox select {_x000D_
  width: 100%;_x000D_
  font-weight: bold;_x000D_
}_x000D_
_x000D_
.overSelect {_x000D_
  position: absolute;_x000D_
  left: 0;_x000D_
  right: 0;_x000D_
  top: 0;_x000D_
  bottom: 0;_x000D_
}_x000D_
_x000D_
#checkboxes {_x000D_
  display: none;_x000D_
  border: 1px #dadada solid;_x000D_
}_x000D_
_x000D_
#checkboxes label {_x000D_
  display: block;_x000D_
}_x000D_
_x000D_
#checkboxes label:hover {_x000D_
  background-color: #1e90ff;_x000D_
}
_x000D_
<form>_x000D_
  <div class="multiselect">_x000D_
    <div class="selectBox" onclick="showCheckboxes()">_x000D_
      <select>_x000D_
        <option>Select an option</option>_x000D_
      </select>_x000D_
      <div class="overSelect"></div>_x000D_
    </div>_x000D_
    <div id="checkboxes">_x000D_
      <label for="one">_x000D_
        <input type="checkbox" id="one" />First checkbox</label>_x000D_
      <label for="two">_x000D_
        <input type="checkbox" id="two" />Second checkbox</label>_x000D_
      <label for="three">_x000D_
        <input type="checkbox" id="three" />Third checkbox</label>_x000D_
    </div>_x000D_
  </div>_x000D_
</form>
_x000D_
_x000D_
_x000D_

Explanation:

At first we create a select element that shows text "Select an option", and empty element that covers (overlaps) the select element (<div class="overSelect">). We do not want the user to click on the select element - it would show an empty options. To overlap the element with other element we use CSS position property with value relative | absolute.

To add the functionality we specify a JavaScript function that is called when the user clicks on the div that contains our select element (<div class="selectBox" onclick="showCheckboxes()">).

We also create div that contains our checkboxes and style it using CSS. The above mentioned JavaScript function just changes <div id="checkboxes"> value of CSS display property from "none" to "block" and vice versa.

The solution was tested in the following browsers: Internet Explorer 10, Firefox 34, Chrome 39. The browser needs to have JavaScript enabled.


More information:

CSS positioning

How to overlay one div over another div

http://www.w3schools.com/css/css_positioning.asp

CSS display property

http://www.w3schools.com/cssref/pr_class_display.asp

How do I run two commands in one line in Windows CMD?

You can use & to run commands one after another. Example: c:\dir & vim myFile.txt

add controls vertically instead of horizontally using flow layout

I hope what you are trying to achieve is like this. For this please use Box layout.

package com.kcing.kailas.sample.client;

import javax.swing.BoxLayout;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.WindowConstants;

public class Testing extends JFrame {

    private JPanel jContentPane = null;

    public Testing() {
        super();
        initialize();
    }

    private void initialize() {
        this.setSize(300, 200);
        this.setContentPane(getJContentPane());
        this.setTitle("JFrame");
    }

    private JPanel getJContentPane() {
        if (jContentPane == null) {
            jContentPane = new JPanel();
            jContentPane.setLayout(null);

            JPanel panel = new JPanel();

            panel.setBounds(61, 11, 81, 140);
            panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
            jContentPane.add(panel);

            JCheckBox c1 = new JCheckBox("Check1");
            panel.add(c1);
            c1 = new JCheckBox("Check2");
            panel.add(c1);
            c1 = new JCheckBox("Check3");
            panel.add(c1);
            c1 = new JCheckBox("Check4");
            panel.add(c1);
        }
        return jContentPane;
    }

    public static void main(String[] args) throws Exception {
        Testing frame = new Testing();
        frame.setVisible(true);
        frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
    }
}

A JRE or JDK must be available in order to run Eclipse. No JVM was found after searching the following locations

Here is how I fixed mine:

  1. find the location where your jre is installed. in my case, it was located at C:\Program Files\Java\jdk1.7.0_10

  2. copy the jre folder and paste it where your eclipse files are located (where eclipse.exe is located).

when you download eclipse, you get a .zip package containing eclipse.exe and all the other files needed to run eclipse but it is missing the jre files. so all you need to do is to find where jre folder is located on your hard drive and add it to the rest of the eclipse package.

Rebuild or regenerate 'ic_launcher.png' from images in Android Studio

When making an Android app in eclipse, just right-click on the res folder, click New -> Other, and select Android Icon Set under Android.

This allows you to make more icons (or replace any existing ones) easily.

JavaScript and Threads

You could use Narrative JavaScript, a compiler that will transforms your code into a state machine, effectively allowing you to emulate threading. It does so by adding a "yielding" operator (notated as '->') to the language that allows you to write asynchronous code in a single, linear code block.

How do I block comment in Jupyter notebook?

Use triple single quotes ''' at the beginning and end. It will be ignored as a doc string within the function.

'''
This is how you would
write multiple lines of code
in Jupyter notebooks.
'''

I can't figure out how to print that in multiple lines but you can add a line anywhere in between those quotes and your code will be fine.

How to get video duration, dimension and size in PHP?

getID3 supports video formats. See: http://getid3.sourceforge.net/

Edit: So, in code format, that'd be like:

include_once('pathto/getid3.php');
$getID3 = new getID3;
$file = $getID3->analyze($filename);
echo("Duration: ".$file['playtime_string'].
" / Dimensions: ".$file['video']['resolution_x']." wide by ".$file['video']['resolution_y']." tall".
" / Filesize: ".$file['filesize']." bytes<br />");

Note: You must include the getID3 classes before this will work! See the above link.

Edit: If you have the ability to modify the PHP installation on your server, a PHP extension for this purpose is ffmpeg-php. See: http://ffmpeg-php.sourceforge.net/

R: `which` statement with multiple conditions

The && function is not vectorized. You need the & function:

EUR <- PCs[which(PCs$V13 < 9 & PCs$V13 > 3), ]

How do I prevent CSS inheritance?

You can use the * selector to change the child styles back to the default

example

#parent {
    white-space: pre-wrap;
}

#parent * {
    white-space: initial;
}

Constructor overloading in Java - best practice

I think the best practice is to have single primary constructor to which the overloaded constructors refer to by calling this() with the relevant parameter defaults. The reason for this is that it makes it much clearer what is the constructed state of the object is - really you can think of the primary constructor as the only real constructor, the others just delegate to it

One example of this might be JTable - the primary constructor takes a TableModel (plus column and selection models) and the other constructors call this primary constructor.

For subclasses where the superclass already has overloaded constructors, I would tend to assume that it is reasonable to treat any of the parent class's constructors as primary and think it is perfectly legitimate not to have a single primary constructor. For example,when extending Exception, I often provide 3 constructors, one taking just a String message, one taking a Throwable cause and the other taking both. Each of these constructors calls super directly.

How to export all data from table to an insertable sql format?

I have not seen any option in Microsoft SQL Server Management Studio 2012 to-date that will do that.

I am sure you can write something in T-SQL given the time.

Check out TOAD from QUEST - now owned by DELL.

http://www.toadworld.com/products/toad-for-oracle/f/10/t/9778.aspx

Select your rows.
Rt -click -> Export Dataset.
Choose Insert Statement format
Be sure to check “selected rows only”

Nice thing about toad, it works with both SQL server and Oracle. If you have to work with both, it is a good investment.

Failed to resolve: com.android.support:cardview-v7:26.0.0 android

2 Steps to fix this.. 1, connect to internet. 2, Click on clean project. this will fix it :)

warning: implicit declaration of function

When you get the error: implicit declaration of function it should also list the offending function. Often this error happens because of a forgotten or missing header file, so at the shell prompt you can type man 2 functionname and look at the SYNOPSIS section at the top, as this section will list any header files that need to be included. Or try http://linux.die.net/man/ This is the online man pages they are hyperlinked and easy to search. Functions are often defined in the header files, including any required header files is often the answer. Like cnicutar said,

You are using a function for which the compiler has not seen a declaration ("prototype") yet.

Left align block of equations

The fleqn option in the document class will apply left aligning setting in all equations of the document. You can instead use \begin{flalign}. This will align only the desired equations.

UITableView Separator line

Try this:

UIImageView *separator = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"separator.png"]];
[cell.contentView addSubview: separator];

That's an example of how I got it to work pretty well.

Remember to set the separator style for the table view to none.

Minimum and maximum date

As you can see, 01/01/1970 returns 0, which means it is the lowest possible date.

new Date('1970-01-01Z00:00:00:000') //returns Thu Jan 01 1970 01:00:00 GMT+0100 (Central European Standard Time)
new Date('1970-01-01Z00:00:00:000').getTime() //returns 0
new Date('1970-01-01Z00:00:00:001').getTime() //returns 1

How to upgrade rubygems

Install rubygems-update

gem install rubygems-update
update_rubygems
gem update --system

run this commands as root or use sudo.

summing two columns in a pandas dataframe

If "budget" has any NaN values but you don't want it to sum to NaN then try:

def fun (b, a):
    if math.isnan(b):
        return a
    else:
        return b + a

f = np.vectorize(fun, otypes=[float])

df['variance'] = f(df['budget'], df_Lp['actual'])

How to display hidden characters by default (ZERO WIDTH SPACE ie. &#8203)

Not sure what you meant, but you can permanently turn showing whitespaces on and off in Settings -> Editor -> General -> Appearance -> Show whitespaces.

Also, you can set it for a current file only in View -> Active Editor -> Show WhiteSpaces.

Edit:

Had some free time since it looks like a popular issue, I had written a plugin to inspect the code for such abnormalities. It is called Zero Width Characters locator and you're welcome to give it a try.

Scanner vs. BufferedReader

Following are the differences between BufferedReader and Scanner

  1. BufferedReader only read data but scanner also parse data.
  2. you can only read String using BufferedReader, but you can read int, long or float using Scanner.
  3. BufferedReader is older from Scanner,it exists from jdk 1.1 while Scanner was added on JDK 5 release.
  4. The Buffer size of BufferedReader is large(8KB) as compared to 1KB of Scanner.
  5. BufferedReader is more suitable for reading file with long String while Scanner is more suitable for reading small user input from command prompt.
  6. BufferedReader is synchronized but Scanner is not, which means you cannot share Scanner among multiple threads.
  7. BufferedReader is faster than Scanner because it doesn't spent time on parsing
  8. BufferedReader is a bit faster as compared to Scanner
  9. BufferedReader is from java.io package and Scanner is from java.util package on basis of the points we can select our choice.

Thanks

How to find schema name in Oracle ? when you are connected in sql session using read only user

How about the following 3 statements?

-- change to your schema

ALTER SESSION SET CURRENT_SCHEMA=yourSchemaName;

-- check current schema

SELECT SYS_CONTEXT('USERENV','CURRENT_SCHEMA') FROM DUAL;

-- generate drop table statements

SELECT 'drop table ', table_name, 'cascade constraints;' FROM ALL_TABLES WHERE OWNER = 'yourSchemaName';

COPY the RESULT and PASTE and RUN.

What does the percentage sign mean in Python

It checks if the modulo of the division. For example, in the case you are iterating over all numbers from 2 to n and checking if n is divisible by any of the numbers in between. Simply put, you are checking if a given number n is prime. (Hint: You could check up to n/2).

How to check if a radiobutton is checked in a radiogroup in Android?

I used the id's of my radiobuttons to compare with the id of the checkedRadioButton that I got using mRadioGroup.getCheckedRadioButtonId()

Here is my code:

mRadioButton1=(RadioButton)findViewById(R.id.first);
mRadioButton2=(RadioButton)findViewById(R.id.second);
mRadioButton3=(RadioButton)findViewById(R.id.third);
mRadioButton4=(RadioButton)findViewById(R.id.fourth);

mNextButton=(Button)findViewById(R.id.next_button);

mNextButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        int selectedId=mRadioGroup.getCheckedRadioButtonId();

        int n=0;
        if(selectedId==R.id.first){n=1;}

        else if(selectedId==R.id.second){n=2;}

        else if(selectedId==R.id.third){n=3;}

        else if(selectedId==R.id.fourth){n=4;}
        //. . . .
    }

Recommended way to get hostname in Java

Environment variables may also provide a useful means -- COMPUTERNAME on Windows, HOSTNAME on most modern Unix/Linux shells.

See: https://stackoverflow.com/a/17956000/768795

I'm using these as "supplementary" methods to InetAddress.getLocalHost().getHostName(), since as several people point out, that function doesn't work in all environments.

Runtime.getRuntime().exec("hostname") is another possible supplement. At this stage, I haven't used it.

import java.net.InetAddress;
import java.net.UnknownHostException;

// try InetAddress.LocalHost first;
//      NOTE -- InetAddress.getLocalHost().getHostName() will not work in certain environments.
try {
    String result = InetAddress.getLocalHost().getHostName();
    if (StringUtils.isNotEmpty( result))
        return result;
} catch (UnknownHostException e) {
    // failed;  try alternate means.
}

// try environment properties.
//      
String host = System.getenv("COMPUTERNAME");
if (host != null)
    return host;
host = System.getenv("HOSTNAME");
if (host != null)
    return host;

// undetermined.
return null;

In Perl, how to remove ^M from a file?

Slightly unrelated, but to remove ^M from the command line using Perl, do this:

perl -p -i -e "s/\r\n/\n/g" file.name

Content type 'application/x-www-form-urlencoded;charset=UTF-8' not supported for @RequestBody MultiValueMap

Add a header to your request to set content type to application/json

curl -H 'Content-Type: application/json' -s -XPOST http://your.domain.com/ -d YOUR_JSON_BODY

this way spring knows how to parse the content.

How to use not contains() in xpath?

Should be xpath with not contains() method, //production[not(contains(category,'business'))]

Python: How to remove empty lists from a list?

a = [[1,'aa',3,12,'a','b','c','s'],[],[],[1,'aa',7,80,'d','g','f',''],[9,None,11,12,13,14,15,'k']]

b=[]
for lng in range(len(a)):
       if(len(a[lng])>=1):b.append(a[lng])
a=b
print(a)

Output:

[[1,'aa',3,12,'a','b','c','s'],[1,'aa',7,80,'d','g','f',''],[9,None,11,12,13,14,15,'k']]

Online PHP syntax checker / validator

To expand on my comment.

You can validate on the command line using php -l [filename], which does a syntax check only (lint). This will depend on your php.ini error settings, so you can edit you php.ini or set the error_reporting in the script.

Here's an example of the output when run on a file containing:

<?php
echo no quotes or semicolon

Results in:

PHP Parse error:  syntax error, unexpected T_STRING, expecting ',' or ';' in badfile.php on line 2

Parse error: syntax error, unexpected T_STRING, expecting ',' or ';' in badfile.php on line 2

Errors parsing badfile.php

I suggested you build your own validator.

A simple page that allows you to upload a php file. It takes the uploaded file runs it through php -l and echos the output.

Note: this is not a security risk it does not execute the file, just checks for syntax errors.

Here's a really basic example of creating your own:

<?php
if (isset($_FILES['file'])) {
    echo '<pre>';
    passthru('php -l '.$_FILES['file']['tmp_name']);
    echo '</pre>';
}
?>
<form action="" method="post" enctype="multipart/form-data">
    <input type="file" name="file"/>
    <input type="submit"/>
</form>

Change input value onclick button - pure javascript or jQuery

Another simple solution for this case using jQuery. Keep in mind it's not a good practice to use inline javascript.

JsFiddle

I've added IDs to html on the total price and on the buttons. Here is the jQuery.

$('#two').click(function(){
    $('#count').val('2');
    $('#total').text('Product price: $1000');
});

$('#four').click(function(){
    $('#count').val('4');
    $('#total').text('Product price: $2000');
});

Is jQuery $.browser Deprecated?

Second Question

Will my existing implementations continue to work? If not, is there an easy to implement alternative.

The answer is yes, but not without a little work.

$.browser is an official plugin which was included in older versions of jQuery, so like any plugin you can simple copy it and incorporate it into your project or you can simply add it to the end of any jQuery release.

I have extracted the code for you incase you wish to use it.


// Limit scope pollution from any deprecated API
(function() {

    var matched, browser;

// Use of jQuery.browser is frowned upon.
// More details: http://api.jquery.com/jQuery.browser
// jQuery.uaMatch maintained for back-compat
    jQuery.uaMatch = function( ua ) {
        ua = ua.toLowerCase();

        var match = /(chrome)[ \/]([\w.]+)/.exec( ua ) ||
            /(webkit)[ \/]([\w.]+)/.exec( ua ) ||
            /(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) ||
            /(msie) ([\w.]+)/.exec( ua ) ||
            ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) ||
            [];

        return {
            browser: match[ 1 ] || "",
            version: match[ 2 ] || "0"
        };
    };

    matched = jQuery.uaMatch( navigator.userAgent );
    browser = {};

    if ( matched.browser ) {
        browser[ matched.browser ] = true;
        browser.version = matched.version;
    }

// Chrome is Webkit, but Webkit is also Safari.
    if ( browser.chrome ) {
        browser.webkit = true;
    } else if ( browser.webkit ) {
        browser.safari = true;
    }

    jQuery.browser = browser;

    jQuery.sub = function() {
        function jQuerySub( selector, context ) {
            return new jQuerySub.fn.init( selector, context );
        }
        jQuery.extend( true, jQuerySub, this );
        jQuerySub.superclass = this;
        jQuerySub.fn = jQuerySub.prototype = this();
        jQuerySub.fn.constructor = jQuerySub;
        jQuerySub.sub = this.sub;
        jQuerySub.fn.init = function init( selector, context ) {
            if ( context && context instanceof jQuery && !(context instanceof jQuerySub) ) {
                context = jQuerySub( context );
            }

            return jQuery.fn.init.call( this, selector, context, rootjQuerySub );
        };
        jQuerySub.fn.init.prototype = jQuerySub.fn;
        var rootjQuerySub = jQuerySub(document);
        return jQuerySub;
    };

})();

If you're asking why anyone would need a depreciated plugin, I have prepared the following answer.

First and foremost the answer is compatibility. Since jQuery is plugin based, some developers opted to use $.browser and with the latest releases of jQuery which doesn't include $.browser all those plugins where rendered useless.

jQuery did release a migration plugin, which was created for developers to detect whether their plugin's used any depreciated dependencies such as $.browser.

Although this helped developers patch their plugin's. jQuery dropped $.browser completely so the above fix is probably the only solution until your developers patch or incorporate the above.

About: jQuery.browser

How can I add the new "Floating Action Button" between two widgets/layouts

Now it is part of official Design Support Library.

In your gradle:

compile 'com.android.support:design:22.2.0'

http://developer.android.com/reference/android/support/design/widget/FloatingActionButton.html

How to get a jqGrid cell value when editing

you can use this directly....

onCellSelect: function(rowid,iCol,cellcontent,e) {
            alert(cellcontent);
        }

default select option as blank

If you don't need any empty option at first, try this first line:

    <option style="display:none"></option>

C++11 introduced a standardized memory model. What does it mean? And how is it going to affect C++ programming?

C and C++ used to be defined by an execution trace of a well formed program.

Now they are half defined by an execution trace of a program, and half a posteriori by many orderings on synchronisation objects.

Meaning that these language definitions make no sense at all as no logical method to mix these two approaches. In particular, destruction of a mutex or atomic variable is not well defined.

jQuery bind to Paste Event, how to get the content of the paste

I recently needed to accomplish something similar to this. I used the following design to access the paste element and value. jsFiddle demo

$('body').on('paste', 'input, textarea', function (e)
{
    setTimeout(function ()
    {
        //currentTarget added in jQuery 1.3
        alert($(e.currentTarget).val());
        //do stuff
    },0);
});

What are the differences between LinearLayout, RelativeLayout, and AbsoluteLayout?

LinearLayout means you can align views one by one (vertically/ horizontally).

RelativeLayout means based on relation of views from its parents and other views.

ConstraintLayout is similar to a RelativeLayout in that it uses relations to position and size widgets, but has additional flexibility and is easier to use in the Layout Editor.

WebView to load html, static or dynamic pages.

FrameLayout to load child one above another, like cards inside a frame, we can place one above another or anywhere inside the frame.

deprecated - AbsoluteLayout means you have to give exact position where the view should be.

For more information, please check this address https://developer.android.com/guide/topics/ui/declaring-layout#CommonLayouts

Subset and ggplot2

Similar to @nicolaskruchten s answer you could do the following:

require(ggplot2)

df = data.frame(ID = c('P1', 'P1', 'P2', 'P2', 'P3', 'P3'),
                Value1 = c(100, 120, 300, 400, 130, 140),
                Value2 = c(12, 13, 11, 16, 15, 12))

ggplot(df) + 
  geom_line(data = ~.x[.x$ID %in% c("P1" , "P3"), ],
            aes(Value1, Value2, group = ID, colour = ID))

How to use a ViewBag to create a dropdownlist?

Try using @Html.DropDownList instead:

<td>Account: </td>
<td>@Html.DropDownList("accountid", new SelectList(ViewBag.Accounts, "AccountID", "AccountName"))</td>

@Html.DropDownListFor expects a lambda as its first argument, not a string for the ID as you specify.

Other than that, without knowing what getUserAccounts() consists of, suffice to say it needs to return some sort of collection (IEnumerable for example) that has at least 1 object in it. If it returns null the property in the ViewBag won't have anything.

What is default session timeout in ASP.NET?

The default is 20 minutes. http://msdn.microsoft.com/en-us/library/h6bb9cz9(v=vs.80).aspx

<sessionState 
mode="[Off|InProc|StateServer|SQLServer|Custom]"
timeout="number of minutes"
cookieName="session identifier cookie name"
cookieless=
     "[true|false|AutoDetect|UseCookies|UseUri|UseDeviceProfile]"
regenerateExpiredSessionId="[True|False]"
sqlConnectionString="sql connection string"
sqlCommandTimeout="number of seconds"
allowCustomSqlDatabase="[True|False]"
useHostingIdentity="[True|False]"
stateConnectionString="tcpip=server:port"
stateNetworkTimeout="number of seconds"
customProvider="custom provider name">
<providers>...</providers>
</sessionState>

Stratified Train/Test-split in scikit-learn

#train_size is 1 - tst_size - vld_size
tst_size=0.15
vld_size=0.15

X_train_test, X_valid, y_train_test, y_valid = train_test_split(df.drop(y, axis=1), df.y, test_size = vld_size, random_state=13903) 

X_train_test_V=pd.DataFrame(X_train_test)
X_valid=pd.DataFrame(X_valid)

X_train, X_test, y_train, y_test = train_test_split(X_train_test, y_train_test, test_size=tst_size, random_state=13903)

Splitting a list into N parts of approximately equal length

Another attempt at simple readable chunker that works.

def chunk(iterable, count): # returns a *generator* that divides `iterable` into `count` of contiguous chunks of similar size
    assert count >= 1
    return (iterable[int(_*len(iterable)/count+0.5):int((_+1)*len(iterable)/count+0.5)] for _ in range(count))

print("Chunk count:  ", len(list(         chunk(range(105),10))))
print("Chunks:       ",     list(         chunk(range(105),10)))
print("Chunks:       ",     list(map(list,chunk(range(105),10))))
print("Chunk lengths:",     list(map(len, chunk(range(105),10))))

print("Testing...")
for iterable_length in range(100):
    for chunk_count in range(1,100):
        chunks = list(chunk(range(iterable_length),chunk_count))
        assert chunk_count == len(chunks)
        assert iterable_length == sum(map(len,chunks))
        assert all(map(lambda _:abs(len(_)-iterable_length/chunk_count)<=1,chunks))
print("Okay")

Outputs:

Chunk count:   10
Chunks:        [range(0, 11), range(11, 21), range(21, 32), range(32, 42), range(42, 53), range(53, 63), range(63, 74), range(74, 84), range(84, 95), range(95, 105)]
Chunks:        [[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], [11, 12, 13, 14, 15, 16, 17, 18, 19, 20], [21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31], [32, 33, 34, 35, 36, 37, 38, 39, 40, 41], [42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52], [53, 54, 55, 56, 57, 58, 59, 60, 61, 62], [63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73], [74, 75, 76, 77, 78, 79, 80, 81, 82, 83], [84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94], [95, 96, 97, 98, 99, 100, 101, 102, 103, 104]]
Chunk lengths: [11, 10, 11, 10, 11, 10, 11, 10, 11, 10]
Testing...
Okay

Can you hide the controls of a YouTube embed without enabling autoplay?

Set autoplay=0

<iframe width="100%" height="100%" src="//www.youtube.com/embed/qUJYqhKZrwA?autoplay=0&showinfo=0&controls=0" frameborder="0" allowfullscreen>

As seen here: Autoplay=0 Test

jQuery AJAX cross domain

From the Jquery docs (link):

  • Due to browser security restrictions, most "Ajax" requests are subject to the same origin policy; the request can not successfully retrieve data from a different domain, subdomain, or protocol.

  • Script and JSONP requests are not subject to the same origin policy restrictions.

So I would take it that you need to use jsonp for the request. But haven't tried this myself.

CXF: No message body writer found for class - automatically mapping non-simple resources

In my scenario, i faced similar error, when the rest url without port number is not properly configured for load balancing. I verified the rest url with portnumber and this issue was not occurring. so we had to update the load balancing configuration to resolve this issue.

Python - AttributeError: 'numpy.ndarray' object has no attribute 'append'

append on an ndarray is ambiguous; to which axis do you want to append the data? Without knowing precisely what your data looks like, I can only provide an example using numpy.concatenate that I hope will help:

import numpy as np

pixels = np.array([[3,3]])
pix = [4,4]
pixels = np.concatenate((pixels,[pix]),axis=0)

# [[3 3]
#  [4 4]]

Java, return if trimmed String in List contains String

You need to iterate your list and call String#trim for searching:

String search = "A";
for(String str: myList) {
    if(str.trim().contains(search))
       return true;
}
return false;

OR if you want to perform ignore case search, then use:

search = search.toLowerCase(); // outside loop

// inside the loop
if(str.trim().toLowerCase().contains(search))

Why is PHP session_destroy() not working?

I had to also remove session cookies like this:

session_start(); 
$_SESSION = []; 

// If it's desired to kill the session, also 
// delete the session cookie. 
// Note: This will destroy the session, and 
// not just the session data! 
if (ini_get("session.use_cookies")) { 
    $params = session_get_cookie_params(); 
    setcookie(session_name(), '', time() - 42000, 
        $params["path"], $params["domain"], 
        $params["secure"], $params["httponly"] 
    ); 
} 

// Finally, destroy the session. 
session_destroy();

Source: geeksforgeeks.org

Best practices with STDIN in Ruby?

I am not quite sure what you need, but I would use something like this:

#!/usr/bin/env ruby

until ARGV.empty? do
  puts "From arguments: #{ARGV.shift}"
end

while a = gets
  puts "From stdin: #{a}"
end

Note that because ARGV array is empty before first gets, Ruby won't try to interpret argument as text file from which to read (behaviour inherited from Perl).

If stdin is empty or there is no arguments, nothing is printed.

Few test cases:

$ cat input.txt | ./myprog.rb
From stdin: line 1
From stdin: line 2

$ ./myprog.rb arg1 arg2 arg3
From arguments: arg1
From arguments: arg2
From arguments: arg3
hi!
From stdin: hi!

How to catch an Exception from a thread

That's because exceptions are local to a thread, and your main thread doesn't actually see the run method. I suggest you read more about how threading works, but to quickly summarize: your call to start starts up a different thread, totally unrelated to your main thread. The call to join simply waits for it to be done. An exception that is thrown in a thread and never caught terminates it, which is why join returns on your main thread, but the exception itself is lost.

If you want to be aware of these uncaught exceptions you can try this:

Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
    @Override
    public void uncaughtException(Thread t, Throwable e) {
        System.out.println("Caught " + e);
    }
});

More information about uncaught exception handling can be found here.

How to "git show" a merge commit with combined diff output even when every changed file agrees with one of the parents?

I think you just need 'git show -c $ref'. Trying this on the git repository on a8e4a59 shows a combined diff (plus/minus chars in one of 2 columns). As the git-show manual mentions, it pretty much delegates to 'git diff-tree' so those options look useful.

What column type/length should I use for storing a Bcrypt hashed password in a Database?

A Bcrypt hash can be stored in a BINARY(40) column.

BINARY(60), as the other answers suggest, is the easiest and most natural choice, but if you want to maximize storage efficiency, you can save 20 bytes by losslessly deconstructing the hash. I've documented this more thoroughly on GitHub: https://github.com/ademarre/binary-mcf

Bcrypt hashes follow a structure referred to as modular crypt format (MCF). Binary MCF (BMCF) decodes these textual hash representations to a more compact binary structure. In the case of Bcrypt, the resulting binary hash is 40 bytes.

Gumbo did a nice job of explaining the four components of a Bcrypt MCF hash:

$<id>$<cost>$<salt><digest>

Decoding to BMCF goes like this:

  1. $<id>$ can be represented in 3 bits.
  2. <cost>$, 04-31, can be represented in 5 bits. Put these together for 1 byte.
  3. The 22-character salt is a (non-standard) base-64 representation of 128 bits. Base-64 decoding yields 16 bytes.
  4. The 31-character hash digest can be base-64 decoded to 23 bytes.
  5. Put it all together for 40 bytes: 1 + 16 + 23

You can read more at the link above, or examine my PHP implementation, also on GitHub.

Sorting HTML table with JavaScript

The best way I know to sort HTML table with javascript is with the following function.

Just pass to it the id of the table you'd like to sort and the column number on the row. it assumes that the column you are sorting is numeric or has numbers in it and will do regex replace to get the number itself (great for currencies and other numbers with symbols in it).

function sortTable(table_id, sortColumn){
    var tableData = document.getElementById(table_id).getElementsByTagName('tbody').item(0);
    var rowData = tableData.getElementsByTagName('tr');            
    for(var i = 0; i < rowData.length - 1; i++){
        for(var j = 0; j < rowData.length - (i + 1); j++){
            if(Number(rowData.item(j).getElementsByTagName('td').item(sortColumn).innerHTML.replace(/[^0-9\.]+/g, "")) < Number(rowData.item(j+1).getElementsByTagName('td').item(sortColumn).innerHTML.replace(/[^0-9\.]+/g, ""))){
                tableData.insertBefore(rowData.item(j+1),rowData.item(j));
            }
        }
    }
}

Using example:

$(function(){
    // pass the id and the <td> place you want to sort by (td counts from 0)
    sortTable('table_id', 3);
});

Uncaught TypeError: Cannot use 'in' operator to search for 'length' in

The in operator only works on objects. You are using it on a string. Make sure your value is an object before you using $.each. In this specific case, you have to parse the JSON:

$.each(JSON.parse(myData), ...);

How can I check if a user is logged-in in php?

else if (isset($_GET['actie']) && $_GET['actie']== "aanmelden"){

    $username= $_POST['username'];
    $password= md5($_POST['password']);
    $query = "SELECT password FROM tbl WHERE username = '$username'";
    $result= mysql_query($query);
    $row= mysql_fetch_array($result);

    if($password == $row['password']){
            session_start();
            $_SESSION['logged in'] = true;
            echo "Logged in";

    }
}

How does python numpy.where() work?

How do they achieve internally that you are able to pass something like x > 5 into a method?

The short answer is that they don't.

Any sort of logical operation on a numpy array returns a boolean array. (i.e. __gt__, __lt__, etc all return boolean arrays where the given condition is true).

E.g.

x = np.arange(9).reshape(3,3)
print x > 5

yields:

array([[False, False, False],
       [False, False, False],
       [ True,  True,  True]], dtype=bool)

This is the same reason why something like if x > 5: raises a ValueError if x is a numpy array. It's an array of True/False values, not a single value.

Furthermore, numpy arrays can be indexed by boolean arrays. E.g. x[x>5] yields [6 7 8], in this case.

Honestly, it's fairly rare that you actually need numpy.where but it just returns the indicies where a boolean array is True. Usually you can do what you need with simple boolean indexing.

How to get the first line of a file in a bash script?

to read first line using bash, use read statement. eg

read -r firstline<file

firstline will be your variable (No need to assign to another)

Using "If cell contains" in VBA excel

Dim celltxt As String
Range("C6").Select
Selection.End(xlToRight).Select
celltxt = Selection.Text
If InStr(1, celltext, "TOTAL") > 0 Then
Range("C7").Select 
Selection.End(xlToRight).Select
Selection.Value = "-"
End If

You declared "celltxt" and used "celltext" in the instr.

Center Div inside another (100% width) div

Just add margin: 0 auto; to the inside div.

Haversine Formula in Python (Bearing and Distance between two GPS points)

The Y in atan2 is, by default, the first parameter. Here is the documentation. You will need to switch your inputs to get the correct bearing angle.

bearing = atan2(sin(lon2-lon1)*cos(lat2), cos(lat1)*sin(lat2)in(lat1)*cos(lat2)*cos(lon2-lon1))
bearing = degrees(bearing)
bearing = (bearing + 360) % 360

How do I create a unique ID in Java?

Generate Unique ID Using Java

UUID is the fastest and easiest way to generate unique ID in Java.

import java.util.UUID;

public class UniqueIDTest {
  public static void main(String[] args) {
    UUID uniqueKey = UUID.randomUUID();
    System.out.println (uniqueKey);
  }
}

SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax — PHP — PDO

from is a keyword in SQL. You may not used it as a column name without quoting it. In MySQL, things like column names are quoted using backticks, i.e. `from`.

Personally, I wouldn't bother; I'd just rename the column.

PS. as pointed out in the comments, to is another SQL keyword so it needs to be quoted, too. Conveniently, the folks at drupal.org maintain a list of reserved words in SQL.

NLS_NUMERIC_CHARACTERS setting for decimal

Best way is,

SELECT to_number(replace(:Str,',','')/100) --into num2 
FROM dual;

Visual Studio 2017 error: Unable to start program, An operation is not legal in the current state

Another solution you can try that worked for me when I received this error is to clean the solution, then do a rebuild. As the other solutions did not help me, I thought this might help someone else in the same boat.

No server in windows>preferences

You can also install the required packages with Help -> Install new software...

See http://www.eclipse.org/downloads/compare.php for the packages you need to install to have eclipse IDE for java EE developers

Overlaying histograms with ggplot2 in R

Using @joran's sample data,

ggplot(dat, aes(x=xx, fill=yy)) + geom_histogram(alpha=0.2, position="identity")

note that the default position of geom_histogram is "stack."

see "position adjustment" of this page:

docs.ggplot2.org/current/geom_histogram.html

Swap x and y axis without manually swapping values

-Right click on either axis

-Click "Select Data..."

-Then Press the "Edit" button

-Copy the "Series X values" to the "Series Y values" and vise versa finally hit ok

I found this answer on this youtube video https://www.youtube.com/watch?v=xLKIWWIWltE

best practice to generate random token for forgot password

This answers the 'best random' request:

Adi's answer1 from Security.StackExchange has a solution for this:

Make sure you have OpenSSL support, and you'll never go wrong with this one-liner

$token = bin2hex(openssl_random_pseudo_bytes(16));

1. Adi, Mon Nov 12 2018, Celeritas, "Generating an unguessable token for confirmation e-mails", Sep 20 '13 at 7:06, https://security.stackexchange.com/a/40314/

GC overhead limit exceeded

From Java SE 6 HotSpot[tm] Virtual Machine Garbage Collection Tuning

the following

Excessive GC Time and OutOfMemoryError

The concurrent collector will throw an OutOfMemoryError if too much time is being spent in garbage collection: if more than 98% of the total time is spent in garbage collection and less than 2% of the heap is recovered, an OutOfMemoryError will be thrown. This feature is designed to prevent applications from running for an extended period of time while making little or no progress because the heap is too small. If necessary, this feature can be disabled by adding the option -XX:-UseGCOverheadLimit to the command line.

The policy is the same as that in the parallel collector, except that time spent performing concurrent collections is not counted toward the 98% time limit. In other words, only collections performed while the application is stopped count toward excessive GC time. Such collections are typically due to a concurrent mode failure or an explicit collection request (e.g., a call to System.gc()).

in conjunction with a passage further down

One of the most commonly encountered uses of explicit garbage collection occurs with RMIs distributed garbage collection (DGC). Applications using RMI refer to objects in other virtual machines. Garbage cannot be collected in these distributed applications without occasionally collection the local heap, so RMI forces full collections periodically. The frequency of these collections can be controlled with properties. For example,

java -Dsun.rmi.dgc.client.gcInterval=3600000

-Dsun.rmi.dgc.server.gcInterval=3600000 specifies explicit collection once per hour instead of the default rate of once per minute. However, this may also cause some objects to take much longer to be reclaimed. These properties can be set as high as Long.MAX_VALUE to make the time between explicit collections effectively infinite, if there is no desire for an upper bound on the timeliness of DGC activity.

Seems to imply that the evaluation period for determining the 98% is one minute long, but it might be configurable on Sun's JVM with the correct define.

Of course, other interpretations are possible.

href="tel:" and mobile numbers

It's the same. Your international format is already correct, and is recommended for use in all cases, where possible.

Unknown column in 'field list' error on MySQL Update query

Just sharing my experience on this. I was having this same issue. My query was like:

select table1.column2 from table1

However, table1 did not have column2 column.

How to get .pem file from .key and .crt files?

Your keys may already be in PEM format, but just named with .crt or .key.

If the file's content begins with -----BEGIN and you can read it in a text editor:

The file uses base64, which is readable in ASCII, not binary format. The certificate is already in PEM format. Just change the extension to .pem.

If the file is in binary:

For the server.crt, you would use

openssl x509 -inform DER -outform PEM -in server.crt -out server.crt.pem

For server.key, use openssl rsa in place of openssl x509.

The server.key is likely your private key, and the .crt file is the returned, signed, x509 certificate.

If this is for a Web server and you cannot specify loading a separate private and public key:

You may need to concatenate the two files. For this use:

cat server.crt server.key > server.includesprivatekey.pem

I would recommend naming files with "includesprivatekey" to help you manage the permissions you keep with this file.

No mapping found for HTTP request with URI [/WEB-INF/pages/apiForm.jsp]

Just add <mvc:default-servlet-handler /> to your DispatcherServlet configuration and you are done!

Merging dataframes on index with pandas

You should be able to use join, which joins on the index as default. Given your desired result, you must use outer as the join type.

>>> df1.join(df2, how='outer')
            V1  V2
A 1/1/2012  12  15
  2/1/2012  14 NaN
  3/1/2012 NaN  21
B 1/1/2012  15  24
  2/1/2012   8   9
C 1/1/2012  17 NaN
  2/1/2012   9 NaN
D 1/1/2012 NaN   7
  2/1/2012 NaN  16

Signature: _.join(other, on=None, how='left', lsuffix='', rsuffix='', sort=False) Docstring: Join columns with other DataFrame either on index or on a key column. Efficiently Join multiple DataFrame objects by index at once by passing a list.

How to uncheck checked radio button

Radio buttons are meant to be required options... If you want them to be unchecked, use a checkbox, there is no need to complicate things and allow users to uncheck a radio button; removing the JQuery allows you to select from one of them

html div onclick event

Change your jQuery code with this. It will alert the id of the a.

$('.expandable-panel-heading:not(#ancherComplaint)').click(function () {
markActiveLink();    
     alert('123');
 });

function markActiveLink(el) {   
var el = $('a').attr("id")
    alert(el);
} 

Demo

Using arrays or std::vectors in C++, what's the performance gap?

If you compile the software in debug mode, many compilers will not inline the accessor functions of the vector. This will make the stl vector implementation much slower in circumstances where performance is an issue. It will also make the code easier to debug since you can see in the debugger how much memory was allocated.

In optimized mode, I would expect the stl vector to approach the efficiency of an array. This is since many of the vector methods are now inlined.

How to transfer data from JSP to servlet when submitting HTML form

first up on create your jsp file : and write the text field which you want
for ex:

after that create your servlet class:

public class test{

protected void doGet(paramter , paramter){

String name  = request.getparameter("name");
 }

}

Java word count program

My implementation, not using StringTokenizer:

Map<String, Long> getWordCounts(List<String> sentences, int maxLength) {
    Map<String, Long> commonWordsInEventDescriptions = sentences
        .parallelStream()
        .map(sentence -> sentence.replace(".", ""))
        .map(string -> string.split(" "))
        .flatMap(Arrays::stream)
        .map(s -> s.toLowerCase())
        .filter(word -> word.length() >= 2 && word.length() <= maxLength)
        .collect(groupingBy(Function.identity(), counting()));
    }

Then, you could call it like this, as an example:

getWordCounts(list, 9).entrySet().stream()
                .filter(pair -> pair.getValue() <= 3 && pair.getValue() >= 1)
                .findFirst()
                .orElseThrow(() -> 
    new RuntimeException("No matching word found.")).getKey();

Perhaps flipping the method to return Map<Long, String> might be better.

What is the difference between synchronous and asynchronous programming (in node.js)

First, I realize I am late in answering this question.

Before discussing synchronous and asynchronous, let us briefly look at how programs run.

In the synchronous case, each statement completes before the next statement is run. In this case the program is evaluated exactly in order of the statements.

This is how asynchronous works in JavaScript. There are two parts in the JavaScript engine, one part that looks at the code and enqueues operations and another that processes the queue. The queue processing happens in one thread, that is why only one operation can happen at a time.

When an asynchronous operation (like the second database query) is seen, the code is parsed and the operation is put in the queue, but in this case a callback is registered to be run when this operation completes. The queue may have many operations in it already. The operation at the front of the queue is processed and removed from the queue. Once the operation for the database query is processed, the request is sent to the database and when complete the callback will be executed on completion. At this time, the queue processor having "handled" the operation moves on the next operation - in this case

    console.log("Hello World"); 

The database query is still being processed, but the console.log operation is at the front of the queue and gets processed. This being a synchronous operation gets executed right away resulting immediately in the output "Hello World". Some time later, the database operation completes, only then the callback registered with the query is called and processed, setting the value of the variable result to rows.

It is possible that one asynchronous operation will result in another asynchronous operation, this second operation will be put in the queue and when it comes to the front of the queue it will be processed. Calling the callback registered with an asynchronous operation is how JavaScript run time returns the outcome of the operation when it is done.

A simple method of knowing which JavaScript operation is asynchronous is to note if it requires a callback - the callback is the code that will get executed when the first operation is complete. In the two examples in the question, we can see only the second case has a callback, so it is the asynchronous operation of the two. It is not always the case because of the different styles of handling the outcome of an asynchronous operation.

To learn more, read about promises. Promises are another way in which the outcome of an asynchronous operation can be handled. The nice thing about promises is that the coding style feels more like synchronous code.

Many libraries like node 'fs', provide both synchronous and asynchronous styles for some operations. In cases where the operation does not take long and is not used a lot - as in the case of reading a config file - the synchronous style operation will result in code that is easier to read.

UPDATE with CASE and IN - Oracle

You said that budgetpost is alphanumeric. That means it is looking for comparisons against strings. You should try enclosing your parameters in single quotes (and you are missing the final THEN in the Case expression).

UPDATE tab1   
SET budgpost_gr1=   CASE  
                        WHEN (budgpost in ('1001','1012','50055'))  THEN 'BP_GR_A'   
                        WHEN (budgpost in ('5','10','98','0'))  THEN 'BP_GR_B'  
                        WHEN (budgpost in ('11','876','7976','67465')) THEN 'What?'
                        ELSE 'Missing' 
                        END 

Can you explain the HttpURLConnection connection process?

Tim Bray presented a concise step-by-step, stating that openConnection() does not establish an actual connection. Rather, an actual HTTP connection is not established until you call methods such as getInputStream() or getOutputStream().

http://www.tbray.org/ongoing/When/201x/2012/01/17/HttpURLConnection

Can't Autowire @Repository annotated interface in Spring Boot

In @ComponentScan("org.pharmacy"), you are declaring org.pharmacy package. But your components in com.pharmacy package.

RelativeLayout center vertical

If View's height/width = wrap_content

use:

android:layout_centerHorizontal="true"
android:layout_centerVertical="true"

If View's height/width = match_parent

use:

android:gravity="center_vertical|center_horizontal"

Where Sticky Notes are saved in Windows 10 1607

It worked for me when HDD with win8.1 crashed and my new HDD has win10. Important to know - Create Legacy folder mentioned in this link. - Remember to rename the StickyNotes.snt to ThresholdNotes.snt. - Restart the app

Find details here https://www.reddit.com/r/Windows10/comments/4wxfds/transfermigrate_sticky_notes_to_new_anniversary/

The activity must be exported or contain an intent-filter

Double check your manifest, your first activity should have tag

    <intent-filter>
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>

inside of activity tag.

If that doesn't work, look for target build, which located in the left of run button (green-colored play button), it should be targeting "app" folder, not a particular activity. if it doesn't targeting "app", just click it and choose "app" from drop down list.

Hope it helps!

make a phone call click on a button

I've just solved the problem on an Android 4.0.2 device (GN) and the only version working for this device/version was similar to the first 5-starred with CALL_PHONE permission and the answer:

Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:123456789"));
startActivity(callIntent);

With any other solution i got the ActivityNotFoundException on this device/version. How about the older versions? Would someone give feedback?

What value could I insert into a bit type column?

Generally speaking, for boolean or bit data types, you would use 0 or 1 like so:

UPDATE tbl SET bitCol = 1 WHERE bitCol = 0

See also:

How to call window.alert("message"); from C#?

It's a bit hard to give a definitive answer without a bit more information, but one usual way is to register a startup script:

try
{
  ...
}
catch(ApplicationException ex){
  Page.ClientScript.RegisterStartupScript(this.GetType(),"ErrorAlert","alert('Some text here - maybe ex.Message');",true);
}

Why do people say that Ruby is slow?

First of all, slower with respect to what? C? Python? Let's get some numbers at the Computer Language Benchmarks Game:

Why is Ruby considered slow?

Depends on whom you ask. You could be told that:

  • Ruby is an interpreted language and interpreted languages will tend to be slower than compiled ones
  • Ruby uses garbage collection (though C#, which also uses garbage collection, comes out two orders of magnitude ahead of Ruby, Python, PHP etc. in the more algorithmic, less memory-allocation-intensive benchmarks above)
  • Ruby method calls are slow (although, because of duck typing, they are arguably faster than in strongly typed interpreted languages)
  • Ruby (with the exception of JRuby) does not support true multithreading
  • etc.

But, then again, slow with respect to what? Ruby 1.9 is about as fast as Python and PHP (within a 3x performance factor) when compared to C (which can be up to 300x faster), so the above (with the exception of threading considerations, should your application heavily depend on this aspect) are largely academic.

What are your options as a Ruby programmer if you want to deal with this "slowness"?

Write for scalability and throw more hardware at it (e.g. memory)

Which version of Ruby would best suit an application like Stack Overflow where speed is critical and traffic is intense?

Well, REE (combined with Passenger) would be a very good candidate.

Using JSON POST Request

An example using jQuery is below. Hope this helps

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<title>My jQuery JSON Web Page</title>
<head>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script type="text/javascript">

JSONTest = function() {

    var resultDiv = $("#resultDivContainer");

    $.ajax({
        url: "https://example.com/api/",
        type: "POST",
        data: { apiKey: "23462", method: "example", ip: "208.74.35.5" },
        dataType: "json",
        success: function (result) {
            switch (result) {
                case true:
                    processResponse(result);
                    break;
                default:
                    resultDiv.html(result);
            }
        },
        error: function (xhr, ajaxOptions, thrownError) {
        alert(xhr.status);
        alert(thrownError);
        }
    });
};

</script>
</head>
<body>

<h1>My jQuery JSON Web Page</h1>

<div id="resultDivContainer"></div>

<button type="button" onclick="JSONTest()">JSON</button>

</body>
</html> 

Firebug debug process

Firebug XHR debug process

Python list iterator behavior and next(iterator)

It behaves the way you want if called as a function:

>>> def test():
...     a = iter(list(range(10)))
...     for i in a:
...         print(i)
...         next(a)
... 
>>> test()
0
2
4
6
8

How to group an array of objects by key

You can also make use of array#forEach() method like this:

_x000D_
_x000D_
const cars = [{ make: 'audi', model: 'r8', year: '2012' }, { make: 'audi', model: 'rs5', year: '2013' }, { make: 'ford', model: 'mustang', year: '2012' }, { make: 'ford', model: 'fusion', year: '2015' }, { make: 'kia', model: 'optima', year: '2012' }];_x000D_
_x000D_
let newcars = {}_x000D_
_x000D_
cars.forEach(car => {_x000D_
  newcars[car.make] ? // check if that array exists or not in newcars object_x000D_
    newcars[car.make].push({model: car.model, year: car.year})  // just push_x000D_
   : (newcars[car.make] = [], newcars[car.make].push({model: car.model, year: car.year})) // create a new array and push_x000D_
})_x000D_
_x000D_
console.log(newcars);
_x000D_
_x000D_
_x000D_

Why number 9 in kill -9 command in unix?

I think a better answer here is simply this:

mike@sleepycat:~?  kill -l
 1) SIGHUP   2) SIGINT   3) SIGQUIT  4) SIGILL   5) SIGTRAP  
 6) SIGABRT  7) SIGBUS   8) SIGFPE   9) SIGKILL 10) SIGUSR1
11) SIGSEGV 12) SIGUSR2 13) SIGPIPE 14) SIGALRM 15) SIGTERM
16) SIGSTKFLT   17) SIGCHLD 18) SIGCONT 19) SIGSTOP 20) SIGTSTP
21) SIGTTIN 22) SIGTTOU 23) SIGURG  24) SIGXCPU 25) SIGXFSZ
26) SIGVTALRM   27) SIGPROF 28) SIGWINCH    29) SIGIO   30) SIGPWR
31) SIGSYS  34) SIGRTMIN    35) SIGRTMIN+1  36) SIGRTMIN+2  37) SIGRTMIN+3
38) SIGRTMIN+4  39) SIGRTMIN+5  40) SIGRTMIN+6  41) SIGRTMIN+7  42) SIGRTMIN+8
43) SIGRTMIN+9  44) SIGRTMIN+10 45) SIGRTMIN+11 46) SIGRTMIN+12 47) SIGRTMIN+13
48) SIGRTMIN+14 49) SIGRTMIN+15 50) SIGRTMAX-14 51) SIGRTMAX-13 52) SIGRTMAX-12
53) SIGRTMAX-11 54) SIGRTMAX-10 55) SIGRTMAX-9  56) SIGRTMAX-8  57) SIGRTMAX-7
58) SIGRTMAX-6  59) SIGRTMAX-5  60) SIGRTMAX-4  61) SIGRTMAX-3  62) SIGRTMAX-2
63) SIGRTMAX-1  64) SIGRTMAX    

As for the "significance" of 9... I would say there is probably none. According to The Linux Programming Interface(p 388):

Each signal is defined as a unique (small) integer, starting sequentially from 1. These integers are defined in with symbolic names of the form SIGxxxx . Since the actual numbers used for each signal vary across implementations, it is these symbolic names that are always used in programs.

Bootstrap 3 Horizontal Divider (not in a dropdown)

Yes there is, you can simply put <hr> in your code where you want it, I already use it in one of my admin panel side bar.

How can I simulate mobile devices and debug in Firefox Browser?

You can use the already mentioned built in Responsive Design Mode (via dev tools) for setting customised screen sizes together with the Random Agent Spoofer Plugin to modify your headers to simulate you are using Mobile, Tablet etc. Many websites specify their content according to these identified headers.

As dev tools you can use the built in Developer Tools (Ctrl + Shift + I or Cmd + Shift + I for Mac) which have become quite similar to Chrome dev tools by now.

GIT clone repo across local file system in windows

You can specify the remote’s URL by applying the UNC path to the file protocol. This requires you to use four slashes:

git clone file:////<host>/<share>/<path>

For example, if your main machine has the IP 192.168.10.51 and the computer name main, and it has a share named code which itself is a git repository, then both of the following commands should work equally:

git clone file:////main/code
git clone file:////192.168.10.51/code

If the Git repository is in a subdirectory, simply append the path:

git clone file:////main/code/project-repository
git clone file:////192.168.10.51/code/project-repository

jQuery scroll() detect when user stops scrolling

Here is how you can handle this:

_x000D_
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    var scrollStop = function (callback) {_x000D_
        if (!callback || typeof callback !== 'function') return;_x000D_
        var isScrolling;_x000D_
        window.addEventListener('scroll', function (event) {_x000D_
            window.clearTimeout(isScrolling);_x000D_
            isScrolling = setTimeout(function() {_x000D_
                callback();_x000D_
            }, 66);_x000D_
        }, false);_x000D_
    };_x000D_
    scrollStop(function () {_x000D_
        console.log('Scrolling has stopped.');_x000D_
    });
_x000D_
<!DOCTYPE html>_x000D_
<html lang="en">_x000D_
<head>_x000D_
    <meta charset="UTF-8">_x000D_
    <title>Title</title>_x000D_
</head>_x000D_
<body>_x000D_
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</body>_x000D_
</html>
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Does Java read integers in little endian or big endian?

If it fits the protocol you use, consider using a DataInputStream, where the behavior is very well defined.

Installing Node.js (and npm) on Windows 10

go to http://nodejs.org/

and hit the button that says "Download For ..."

This'll download the .msi (or .pkg for mac) which will do all the installation and paths for you, unlike the selected answer.

Asserting successive calls to a mock method

I always have to look this one up time and time again, so here is my answer.


Asserting multiple method calls on different objects of the same class

Suppose we have a heavy duty class (which we want to mock):

In [1]: class HeavyDuty(object):
   ...:     def __init__(self):
   ...:         import time
   ...:         time.sleep(2)  # <- Spends a lot of time here
   ...:     
   ...:     def do_work(self, arg1, arg2):
   ...:         print("Called with %r and %r" % (arg1, arg2))
   ...:  

here is some code that uses two instances of the HeavyDuty class:

In [2]: def heavy_work():
   ...:     hd1 = HeavyDuty()
   ...:     hd1.do_work(13, 17)
   ...:     hd2 = HeavyDuty()
   ...:     hd2.do_work(23, 29)
   ...:    


Now, here is a test case for the heavy_work function:

In [3]: from unittest.mock import patch, call
   ...: def test_heavy_work():
   ...:     expected_calls = [call.do_work(13, 17),call.do_work(23, 29)]
   ...:     
   ...:     with patch('__main__.HeavyDuty') as MockHeavyDuty:
   ...:         heavy_work()
   ...:         MockHeavyDuty.return_value.assert_has_calls(expected_calls)
   ...:  

We are mocking the HeavyDuty class with MockHeavyDuty. To assert method calls coming from every HeavyDuty instance we have to refer to MockHeavyDuty.return_value.assert_has_calls, instead of MockHeavyDuty.assert_has_calls. In addition, in the list of expected_calls we have to specify which method name we are interested in asserting calls for. So our list is made of calls to call.do_work, as opposed to simply call.

Exercising the test case shows us it is successful:

In [4]: print(test_heavy_work())
None


If we modify the heavy_work function, the test fails and produces a helpful error message:

In [5]: def heavy_work():
   ...:     hd1 = HeavyDuty()
   ...:     hd1.do_work(113, 117)  # <- call args are different
   ...:     hd2 = HeavyDuty()
   ...:     hd2.do_work(123, 129)  # <- call args are different
   ...:     

In [6]: print(test_heavy_work())
---------------------------------------------------------------------------
(traceback omitted for clarity)

AssertionError: Calls not found.
Expected: [call.do_work(13, 17), call.do_work(23, 29)]
Actual: [call.do_work(113, 117), call.do_work(123, 129)]


Asserting multiple calls to a function

To contrast with the above, here is an example that shows how to mock multiple calls to a function:

In [7]: def work_function(arg1, arg2):
   ...:     print("Called with args %r and %r" % (arg1, arg2))

In [8]: from unittest.mock import patch, call
   ...: def test_work_function():
   ...:     expected_calls = [call(13, 17), call(23, 29)]    
   ...:     with patch('__main__.work_function') as mock_work_function:
   ...:         work_function(13, 17)
   ...:         work_function(23, 29)
   ...:         mock_work_function.assert_has_calls(expected_calls)
   ...:    

In [9]: print(test_work_function())
None


There are two main differences. The first one is that when mocking a function we setup our expected calls using call, instead of using call.some_method. The second one is that we call assert_has_calls on mock_work_function, instead of on mock_work_function.return_value.

Python: How to pip install opencv2 with specific version 2.4.9?

First, get the correct opencv version extension which you want to install. If you want to install 3.4.9.20 then run pip install opencv-python==3.4.5.20.

Running an Excel macro via Python?

I would expect the error is to do with the macro you're calling, try the following bit of code:

Code

import os, os.path
import win32com.client

if os.path.exists("excelsheet.xlsm"):
    xl=win32com.client.Dispatch("Excel.Application")
    xl.Workbooks.Open(os.path.abspath("excelsheet.xlsm"), ReadOnly=1)
    xl.Application.Run("excelsheet.xlsm!modulename.macroname")
##    xl.Application.Save() # if you want to save then uncomment this line and change delete the ", ReadOnly=1" part from the open function.
    xl.Application.Quit() # Comment this out if your excel script closes
    del xl

Scala vs. Groovy vs. Clojure

Scala

Scala evolved out of a pure functional language known as Funnel and represents a clean-room implementation of almost all Java's syntax, differing only where a clear improvement could be made or where it would compromise the functional nature of the language. Such differences include singleton objects instead of static methods, and type inference.

Much of this was based on Martin Odersky's prior work with the Pizza language. The OO/FP integration goes far beyond mere closures and has led to the language being described as post-functional.

Despite this, it's the closest to Java in many ways. Mainly due to a combination of OO support and static typing, but also due to a explicit goal in the language design that it should integrate very tightly with Java.

Groovy

Groovy explicitly tackles two of Java's biggest criticisms by

  • being dynamically typed, which removes a lot of boilerplate and
  • adding closures to the language.

It's perhaps syntactically closest to Java, not offering some of the richer functional constructs that Clojure and Scala provide, but still offering a definite evolutionary improvement - especially for writing script-syle programs.

Groovy has the strongest commercial backing of the three languages, mostly via springsource.

Clojure

Clojure is a functional language in the LISP family, it's also dynamically typed.

Features such as STM support give it some of the best out-of-the-box concurrency support, whereas Scala requires a 3rd-party library such as Akka to duplicate this.

Syntactically, it's also the furthest of the three languages from typical Java code.

I also have to disclose that I'm most acquainted with Scala :)

Binding objects defined in code-behind

While Guy's answer is correct (and probably fits 9 out of 10 cases), it's worth noting that if you are attempting to do this from a control that already has its DataContext set further up the stack, you'll resetting this when you set DataContext back to itself:

DataContext="{Binding RelativeSource={RelativeSource Self}}"

This will of course then break your existing bindings.

If this is the case, you should set the RelativeSource on the control you are trying to bind, rather than its parent.

i.e. for binding to a UserControl's properties:

Binding Path=PropertyName, 
        RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}

Given how difficult it can be currently to see what's going on with data binding, it's worth bearing this in mind even if you find that setting RelativeSource={RelativeSource Self} currently works :)

When a 'blur' event occurs, how can I find out which element focus went *to*?

Use something like this:

var myVar = null;

And then inside your function:

myVar = fldID;

And then:

setTimeout(setFocus,1000)

And then:

function setFocus(){ document.getElementById(fldID).focus(); }

Final code:

<html>
<head>
    <script type="text/javascript">
        function somefunction(){
            var myVar = null;

            myVar = document.getElementById('myInput');

            if(myVar.value=='')
                setTimeout(setFocusOnJobTitle,1000);
            else
                myVar.value='Success';
        }
        function setFocusOnJobTitle(){
            document.getElementById('myInput').focus();
        }
    </script>
</head>
<body>
<label id="jobTitleId" for="myInput">Job Title</label>
<input id="myInput" onblur="somefunction();"></input>
</body>
</html>

How do I convert a C# List<string[]> to a Javascript array?

You could directly inject the values into JavaScript:

//View.cshtml
<script type="text/javascript">
    var arrayOfArrays = JSON.parse('@Html.Raw(Model.Addresses)');
</script>

See JSON.parse, Html.Raw

Alternatively you can get the values via Ajax:

public ActionResult GetValues()
{
    // logic
    // Edit you don't need to serialize it just return the object

    return Json(new { Addresses: lAddressGeocodeModel });
}

<script type="text/javascript">
$(function() {
    $.ajax({
        type: 'POST',
        url: '@Url.Action("GetValues")',
        success: function(result) {
            // do something with result
        }
    });
});
</script>

See jQuery.ajax

Start and stop a timer PHP

For your purpose, this simple class should be all you need:

class Timer {
    private $time = null;
    public function __construct() {
        $this->time = time();
        echo 'Working - please wait..<br/>';
    }

    public function __destruct() {
        echo '<br/>Job finished in '.(time()-$this->time).' seconds.';
    }
}


$t = new Timer(); // echoes "Working, please wait.."

[some operations]

unset($t);  // echoes "Job finished in n seconds." n = seconds elapsed

link with target="_blank" does not open in new tab in Chrome

most simple answer

<a onclick="window.open(this.href,'_blank');return false;" href="http://www.foracure.org.au">Some Other Site</a>

it will work

Angular.js programmatically setting a form field to dirty

This is what worked for me

$scope.form_name.field_name.$setDirty()

How to specify jackson to only use fields - preferably globally

for jackson 1.9.10 I use

ObjectMapper mapper = new ObjectMapper();

mapper.setVisibility(JsonMethod.ALL, Visibility.NONE);
mapper.setVisibility(JsonMethod.FIELD, Visibility.ANY);

to turn of auto dedection.

How to add,set and get Header in request of HttpClient?

You can use HttpPost, there are methods to add Header to the Request.

DefaultHttpClient httpclient = new DefaultHttpClient();
String url = "http://localhost";
HttpPost httpPost = new HttpPost(url);

httpPost.addHeader("header-name" , "header-value");

HttpResponse response = httpclient.execute(httpPost);

Return the characters after Nth character in a string

Since there is the [vba] tag, split is also easy:

str1 = "001 baseball"
str2 = Split(str1)

Then use str2(1).

Creating an R dataframe row-by-row

The reason I like Rcpp so much is that I don't always get how R Core thinks, and with Rcpp, more often than not, I don't have to.

Speaking philosophically, you're in a state of sin with regards to the functional paradigm, which tries to ensure that every value appears independent of every other value; changing one value should never cause a visible change in another value, the way you get with pointers sharing representation in C.

The problems arise when functional programming signals the small craft to move out of the way, and the small craft replies "I'm a lighthouse". Making a long series of small changes to a large object which you want to process on in the meantime puts you square into lighthouse territory.

In the C++ STL, push_back() is a way of life. It doesn't try to be functional, but it does try to accommodate common programming idioms efficiently.

With some cleverness behind the scenes, you can sometimes arrange to have one foot in each world. Snapshot based file systems are a good example (which evolved from concepts such as union mounts, which also ply both sides).

If R Core wanted to do this, underlying vector storage could function like a union mount. One reference to the vector storage might be valid for subscripts 1:N, while another reference to the same storage is valid for subscripts 1:(N+1). There could be reserved storage not yet validly referenced by anything but convenient for a quick push_back(). You don't violate the functional concept when appending outside the range that any existing reference considers valid.

Eventually appending rows incrementally, you run out of reserved storage. You'll need to create new copies of everything, with the storage multiplied by some increment. The STL implementations I've use tend to multiply storage by 2 when extending allocation. I thought I read in R Internals that there is a memory structure where the storage increments by 20%. Either way, growth operations occur with logarithmic frequency relative to the total number of elements appended. On an amortized basis, this is usually acceptable.

As tricks behind the scenes go, I've seen worse. Every time you push_back() a new row onto the dataframe, a top level index structure would need to be copied. The new row could append onto shared representation without impacting any old functional values. I don't even think it would complicate the garbage collector much; since I'm not proposing push_front() all references are prefix references to the front of the allocated vector storage.

SQL: how to select a single id ("row") that meets multiple criteria from a single column

This question is some years old but i came via a duplicate to it. I want to suggest a more general solution too. If you know you always have a fixed number of ancestors you can use some self joins as already suggested in the answers. If you want a generic approach go on reading.

What you need here is called Quotient in relational Algebra. The Quotient is more or less the reversal of the Cartesian Product (or Cross Join in SQL).

Let's say your ancestor set A is (i use a table notation here, i think this is better for understanding)

ancestry
-----------
'England'
'France'
'Germany'

and your user set U is

user_id
--------
   1
   2
   3

The cartesian product C=AxU is then:

user_id  |  ancestry
---------+-----------
   1     | 'England'
   1     | 'France'
   1     | 'Germany'
   2     | 'England'
   2     | 'France'
   2     | 'Germany'
   3     | 'England'
   3     | 'France'
   3     | 'Germany'

If you calculate the set quotient U=C/A then you get

user_id
--------
   1
   2
   3

If you redo the cartesian product UXA you will get C again. But note that for a set T, (T/A)xA will not necessarily reproduce T. For example, if T is

user_id  |  ancestry
---------+-----------
   1     | 'England'
   1     | 'France'
   1     | 'Germany'
   2     | 'England'
   2     | 'France'

then (T/A) is

user_id
--------
   1

(T/A)xA will then be

user_id  |  ancestry
---------+------------
   1     | 'England'
   1     | 'France'
   1     | 'Germany'

Note that the records for user_id=2 have been eliminated by the Quotient and Cartesian Product operations.

Your question is: Which user_id has ancestors from all countries in your ancestor set? In other words you want U=T/A where T is your original set (or your table).

To implement the quotient in SQL you have to do 4 steps:

  1. Create the Cartesian Product of your ancestry set and the set of all user_ids.
  2. Find all records in the Cartesian Product which have no partner in the original set (Left Join)
  3. Extract the user_ids from the resultset of 2)
  4. Return all user_ids from the original set which are not included in the result set of 3)

So let's do it step by step. I will use TSQL syntax (Microsoft SQL server) but it should easily be adaptable to other DBMS. As a name for the table (user_id, ancestry) i choose ancestor

CREATE TABLE ancestry_set (ancestry nvarchar(25))
INSERT INTO ancestry_set (ancestry) VALUES ('England')
INSERT INTO ancestry_set (ancestry) VALUES ('France')
INSERT INTO ancestry_set (ancestry) VALUES ('Germany')

CREATE TABLE ancestor ([user_id] int, ancestry nvarchar(25))
INSERT INTO ancestor ([user_id],ancestry) VALUES (1,'England')
INSERT INTO ancestor ([user_id],ancestry) VALUES(1,'Ireland')
INSERT INTO ancestor ([user_id],ancestry) VALUES(2,'France')
INSERT INTO ancestor ([user_id],ancestry) VALUES(3,'Germany')
INSERT INTO ancestor ([user_id],ancestry) VALUES(3,'Poland')
INSERT INTO ancestor ([user_id],ancestry) VALUES(4,'England')
INSERT INTO ancestor ([user_id],ancestry) VALUES(4,'France')
INSERT INTO ancestor ([user_id],ancestry) VALUES(4,'Germany')
INSERT INTO ancestor ([user_id],ancestry) VALUES(5,'France')
INSERT INTO ancestor ([user_id],ancestry) VALUES(5,'Germany')

1) Create the Cartesian Product of your ancestry set and the set of all user_ids.

SELECT a.[user_id],s.ancestry
FROM ancestor a, ancestry_set s
GROUP BY a.[user_id],s.ancestry

2) Find all records in the Cartesian Product which have no partner in the original set (Left Join) and

3) Extract the user_ids from the resultset of 2)

SELECT DISTINCT cp.[user_id]
FROM (SELECT a.[user_id],s.ancestry
      FROM ancestor a, ancestry_set s
      GROUP BY a.[user_id],s.ancestry) cp
   LEFT JOIN ancestor a ON cp.[user_id]=a.[user_id] AND cp.ancestry=a.ancestry
WHERE a.[user_id] is null

4) Return all user_ids from the original set which are not included in the result set of 3)

SELECT DISTINCT [user_id]
FROM ancestor
WHERE [user_id] NOT IN (
   SELECT DISTINCT cp.[user_id]
   FROM (SELECT a.[user_id],s.ancestry
         FROM ancestor a, ancestry_set s
         GROUP BY a.[user_id],s.ancestry) cp
   LEFT JOIN ancestor a ON cp.[user_id]=a.[user_id] AND cp.ancestry=a.ancestry
   WHERE a.[user_id] is null
   )

C# string reference type?

If we have to answer the question: String is a reference type and it behaves as a reference. We pass a parameter that holds a reference to, not the actual string. The problem is in the function:

public static void TestI(string test)
{
    test = "after passing";
}

The parameter test holds a reference to the string but it is a copy. We have two variables pointing to the string. And because any operations with strings actually create a new object, we make our local copy to point to the new string. But the original test variable is not changed.

The suggested solutions to put ref in the function declaration and in the invocation work because we will not pass the value of the test variable but will pass just a reference to it. Thus any changes inside the function will reflect the original variable.

I want to repeat at the end: String is a reference type but since its immutable the line test = "after passing"; actually creates a new object and our copy of the variable test is changed to point to the new string.

How can I change the color of a Google Maps marker?

enter image description here enter image description here Material Design

EDITED MARCH 2019 now with programmatic pin color,

PURE JAVASCRIPT, NO IMAGES, SUPPORTS LABELS

no longer relies on deprecated Charts API

    var pinColor = "#FFFFFF";
    var pinLabel = "A";

    // Pick your pin (hole or no hole)
    var pinSVGHole = "M12,11.5A2.5,2.5 0 0,1 9.5,9A2.5,2.5 0 0,1 12,6.5A2.5,2.5 0 0,1 14.5,9A2.5,2.5 0 0,1 12,11.5M12,2A7,7 0 0,0 5,9C5,14.25 12,22 12,22C12,22 19,14.25 19,9A7,7 0 0,0 12,2Z";
    var labelOriginHole = new google.maps.Point(12,15);
    var pinSVGFilled = "M 12,2 C 8.1340068,2 5,5.1340068 5,9 c 0,5.25 7,13 7,13 0,0 7,-7.75 7,-13 0,-3.8659932 -3.134007,-7 -7,-7 z";
    var labelOriginFilled =  new google.maps.Point(12,9);


    var markerImage = {  // https://developers.google.com/maps/documentation/javascript/reference/marker#MarkerLabel
        path: pinSVGFilled,
        anchor: new google.maps.Point(12,17),
        fillOpacity: 1,
        fillColor: pinColor,
        strokeWeight: 2,
        strokeColor: "white",
        scale: 2,
        labelOrigin: labelOriginFilled
    };
    var label = {
        text: pinLabel,
        color: "white",
        fontSize: "12px",
    }; // https://developers.google.com/maps/documentation/javascript/reference/marker#Symbol
    this.marker        = new google.maps.Marker({
        map: map.MapObject,
        //OPTIONAL: label: label,
        position: this.geographicCoordinates,
        icon: markerImage,
        //OPTIONAL: animation: google.maps.Animation.DROP,
    });

Trigger event when user scroll to specific element - with jQuery

You can use jQuery plugin with the inview event like this :

jQuery('.your-class-here').one('inview', function (event, visible) {
    if (visible == true) {
      //Enjoy !
    }
});

Link : https://remysharp.com/2009/01/26/element-in-view-event-plugin

Using gradle to find dependency tree

If you want all the dependencies in a single file at the end within two steps. Add this to your build.gradle.kts in the root of your project:

project.rootProject.allprojects {
    apply(plugin="project-report")

    this.task("allDependencies", DependencyReportTask::class) {
        evaluationDependsOnChildren()
        this.setRenderer(AsciiDependencyReportRenderer())
    }

}

Then apply:

./gradlew allDependencies | grep '\-\-\-' | grep -Po '\w+.*$' | awk -F ' ' '{ print $1 }' | sort | grep -v '\{' | grep -v '\[' | uniq | grep '.\+:.\+:.\+'

This will give you all the dependencies in your project and sub-projects along with all the 3rd party dependencies.

If you want to get this done in a programmatic way, then you'll need a custom renderer of the dependencies - you can start by extending the AsciiDependencyReportRenderer that prints an ascii graph of the dependencies by default.

Should I test private methods or only public ones?

It's obviously language dependent. In the past with c++, I've declared the testing class to be a friend class. Unfortunately, this does require your production code to know about the testing class.

Updating and committing only a file's permissions using git version control

Not working for me.

The mode is true, the file perms have been changed, but git says there's no work to do.

git init
git add dir/file
chmod 440 dir/file
git commit -a

The problem seems to be that git recognizes only certain permission changes.

How to check if a service is running via batch file and start it, if it is not running?

@echo off

color 1F


@sc query >%COMPUTERNAME%_START.TXT


find /I "AcPrfMgrSvc" %COMPUTERNAME%_START.TXT >nul

IF ERRORLEVEL 0 EXIT

IF ERRORLEVEL 1 NET START "AcPrfMgrSvc"

Pass array to ajax request in $.ajax()

Just use the JSON.stringify method and pass it through as the "data" parameter for the $.ajax function, like follows:

$.ajax({
    type: "POST",
    url: "index.php",
    dataType: "json",
    data: JSON.stringify({ paramName: info }),
    success: function(msg){
        $('.answer').html(msg);
    }
});

You just need to make sure you include the JSON2.js file in your page...

How to force the browser to reload cached CSS and JavaScript files

Here is a pure JavaScript solution

(function(){

    // Match this timestamp with the release of your code
    var lastVersioning = Date.UTC(2014, 11, 20, 2, 15, 10);
 
    var lastCacheDateTime = localStorage.getItem('lastCacheDatetime');

    if(lastCacheDateTime){
        if(lastVersioning > lastCacheDateTime){
            var reload = true;
        }
    }

    localStorage.setItem('lastCacheDatetime', Date.now());

    if(reload){
        location.reload(true);
    }

})();

The above will look for the last time the user visited your site. If the last visit was before you released new code, it uses location.reload(true) to force page refresh from server.

I usually have this as the very first script within the <head> so it's evaluated before any other content loads. If a reload needs to occurs, it's hardly noticeable to the user.

I am using local storage to store the last visit timestamp on the browser, but you can add cookies to the mix if you're looking to support older versions of IE.

array.select() in javascript

Underscore.js is a good library for these sorts of operations - it uses the builtin routines such as Array.filter if available, or uses its own if not.

http://documentcloud.github.com/underscore/

The docs will give an idea of use - the javascript lambda syntax is nowhere near as succinct as ruby or others (I always forget to add an explicit return statement for example) and scope is another easy way to get caught out, but you can do most things quite easily with the exception of constructs such as lazy list comprehensions.

From the docs for .select() (.filter() is an alias for the same)

Looks through each value in the list, returning an array of all the values that pass a truth test (iterator). Delegates to the native filter method, if it exists.

  var evens = _.select([1, 2, 3, 4, 5, 6], function(num){ return num % 2 == 0; });
  => [2, 4, 6]

gradlew command not found?

Gradle wrapper needs to be built. Try running gradle wrapper --gradle-version 2.13 Remember to change 2.13 to your gradle version number. After running this command, you should see new scripts added to your project folder. You should be able to run the wrapper with ./gradlew build to build your code. Please refer to this guid for more information https://spring.io/guides/gs/gradle/.

Align button at the bottom of div using CSS

Parent container has to have this:

position: relative;

Button itself has to have this:

position: relative;
bottom: 20px;
right: 20px;

or whatever you like

How can I access an internal class from an external assembly?

I see only one case that you would allow exposure to your internal members to another assembly and that is for testing purposes.

Saying that there is a way to allow "Friend" assemblies access to internals:

In the AssemblyInfo.cs file of the project you add a line for each assembly.

[assembly: InternalsVisibleTo("name of assembly here")]

this info is available here.

Hope this helps.

How to use google maps without api key

You can still use free with iframe in google maps share button for example enter image description here

Push commits to another branch

Certainly, though it will only work if it's a fast forward of BRANCH2 or if you force it. The correct syntax to do such a thing is

git push <remote> <source branch>:<dest branch> 

See the description of a "refspec" on the git push man page for more detail on how it works. Also note that both a force push and a reset are operations that "rewrite history", and shouldn't be attempted by the faint of heart unless you're absolutely sure you know what you're doing with respect to any remote repositories and other people who have forks/clones of the same project.

How do I execute a bash script in Terminal?

This is an old thread, but I happened across it and I'm surprised nobody has put up a complete answer yet. So here goes...

The Executing a Command Line Script Tutorial!

Q: How do I execute this in Terminal?

Confusions and Conflicts:

  • You do not need an 'extension' (like .sh or .py or anything else), but it helps to keep track of things. It won't hurt. If the script name contains an extension, however, you must use it.
  • You do not need to be in any certain directory at all for any reason.
  • You do not need to type out the name of the program that runs the file (BASH or Python or whatever) unless you want to. It won't hurt.
  • You do not need sudo to do any of this. This command is reserved for running commands as another user or a 'root' (administrator) user. Great post here.

(A person who is just learning how to execute scripts should not be using this command unless there is a real need, like installing a new program. A good place to put your scripts is in your ~/bin folder. You can get there by typing cd ~/bin or cd $HOME/bin from the terminal prompt. You will have full permissions in that folder.)

To "execute this script" from the terminal on a Unix/Linux type system, you have to do three things:

  1. Tell the system the location of the script. (pick one)

    • Type the full path with the script name (e.g. /path/to/script.sh). You can verify the full path by typing pwd or echo $PWD in the terminal.
    • Execute from the same directory and use ./ for the path (e.g. ./script.sh). Easy.
    • Place the script in a directory that is on the system PATH and just type the name (e.g. script.sh). You can verify the system PATH by typing echo $PATH or echo -e ${PATH//:/\\n} if you want a neater list.
  2. Tell the system that the script has permission to execute. (pick one)

    • Set the "execute bit" by typing chmod +x /path/to/script.sh in the terminal.
    • You can also use chmod 755 /path/to/script.sh if you prefer numbers. There is a great discussion with a cool chart here.
  3. Tell the system the type of script. (pick one)

    • Type the name of the program before the script. (e.g. BASH /path/to/script.sh or PHP /path/to/script.php) If the script has an extension, such as .php or .py, it is part of the script name and you must include it.
    • Use a shebang, which I see you have (#!/bin/bash) in your example. If you have that as the first line of your script, the system will use that program to execute the script. No need for typing programs or using extensions.
    • Use a "portable" shebang. You can also have the system choose the version of the program that is first in the PATH by using #!/usr/bin/env followed by the program name (e.g. #!/usr/bin/env bash or #!/usr/bin/env python3). There are pros and cons as thoroughly discussed here.

How to create a data file for gnuplot?

I had the same issue when tried to open the file using Plot->Data filename... option provided in the version for Windows 7 (by the way, it worked fine on another computer with the same version of the OP system).

Then I tried to change directory and save the .plt file, but it didn't work either. Finally, I tried to tape manually as it was showed for Linux earlier in this queue of posts:

gnuplot > plot "./datafile.dat"

and it worked!

Query to list number of records in each table in a database

To get that information in SQL Management Studio, right click on the database, then select Reports --> Standard Reports --> Disk Usage by Table.

ValueError: math domain error

Your code is doing a log of a number that is less than or equal to zero. That's mathematically undefined, so Python's log function raises an exception. Here's an example:

>>> from math import log
>>> log(-1)
Traceback (most recent call last):
  File "<pyshell#59>", line 1, in <module>
    log(-1)
ValueError: math domain error

Without knowing what your newtonRaphson2 function does, I'm not sure I can guess where the invalid x[2] value is coming from, but hopefully this will lead you on the right track.

How to cut a string after a specific character in unix

This will also do.

echo $var | cut -f2 -d":"

How to delete the last row of data of a pandas dataframe

Surprised nobody brought this one up:

# To remove last n rows
df.head(-n)

# To remove first n rows
df.tail(-n)

Running a speed test on a DataFrame of 1000 rows shows that slicing and head/tail are ~6 times faster than using drop:

>>> %timeit df[:-1]
125 µs ± 132 ns per loop (mean ± std. dev. of 7 runs, 10000 loops each)

>>> %timeit df.head(-1)
129 µs ± 1.18 µs per loop (mean ± std. dev. of 7 runs, 10000 loops each)

>>> %timeit df.drop(df.tail(1).index)
751 µs ± 20.4 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)

font-weight is not working properly?

In my case, I was using Google's Roboto font. So I had to import it at the beginning of my page with its proper weights.

<link href = "https://fonts.googleapis.com/css?family=Roboto+Mono|Roboto+Slab|Roboto:300,400,500,700" rel = "stylesheet" />

Spring Boot, Spring Data JPA with multiple DataSources

thanks to the answers of Steve Park and Rafal Borowiec I got my code working, however, I had one issue: the DriverManagerDataSource is a "simple" implementation and does NOT give you a ConnectionPool (check http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/jdbc/datasource/DriverManagerDataSource.html).

Hence, I replaced the functions which returns the DataSource for the secondDB to.

public DataSource <secondaryDB>DataSource() {
    // use DataSourceBuilder and NOT DriverManagerDataSource 
    // as this would NOT give you ConnectionPool
    DataSourceBuilder dataSourceBuilder = DataSourceBuilder.create();
    dataSourceBuilder.url(databaseUrl);
    dataSourceBuilder.username(username);
    dataSourceBuilder.password(password);
    dataSourceBuilder.driverClassName(driverClassName);
    return dataSourceBuilder.build();
}

Also, if do you not need the EntityManager as such, you can remove both the entityManager() and the @Bean annotation.

Plus, you may want to remove the basePackages annotation of your configuration class: maintaining it with the factoryBean.setPackagesToScan() call is sufficient.

Separators for Navigation

Simply use the separator image as a background image on the li.

To get it to only appear in between list items, position the image to the left of the li, but not on the first one.

For example:

#nav li + li {
    background:url('seperator.gif') no-repeat top left;
    padding-left: 10px
}

This CSS adds the image to every list item that follows another list item - in other words all of them but the first.

NB. Be aware the adjacent selector (li + li) doesn't work in IE6, so you will have to just add the background image to the conventional li (with a conditional stylesheet) and perhaps apply a negative margin to one of the edges.

System.currentTimeMillis vs System.nanoTime

System.nanoTime() isn't supported in older JVMs. If that is a concern, stick with currentTimeMillis

Regarding accuracy, you are almost correct. On SOME Windows machines, currentTimeMillis() has a resolution of about 10ms (not 50ms). I'm not sure why, but some Windows machines are just as accurate as Linux machines.

I have used GAGETimer in the past with moderate success.

run a python script in terminal without the python command

There are three parts:

  1. Add a 'shebang' at the top of your script which tells how to execute your script
  2. Give the script 'run' permissions.
  3. Make the script in your PATH so you can run it from anywhere.

Adding a shebang

You need to add a shebang at the top of your script so the shell knows which interpreter to use when parsing your script. It is generally:

#!path/to/interpretter

To find the path to your python interpretter on your machine you can run the command:

which python

This will search your PATH to find the location of your python executable. It should come back with a absolute path which you can then use to form your shebang. Make sure your shebang is at the top of your python script:

#!/usr/bin/python

Run Permissions

You have to mark your script with run permissions so that your shell knows you want to actually execute it when you try to use it as a command. To do this you can run this command:

chmod +x myscript.py

Add the script to your path

The PATH environment variable is an ordered list of directories that your shell will search when looking for a command you are trying to run. So if you want your python script to be a command you can run from anywhere then it needs to be in your PATH. You can see the contents of your path running the command:

echo $PATH

This will print out a long line of text, where each directory is seperated by a semicolon. Whenever you are wondering where the actual location of an executable that you are running from your PATH, you can find it by running the command:

which <commandname>

Now you have two options: Add your script to a directory already in your PATH, or add a new directory to your PATH. I usually create a directory in my user home directory and then add it the PATH. To add things to your path you can run the command:

export PATH=/my/directory/with/pythonscript:$PATH

Now you should be able to run your python script as a command anywhere. BUT! if you close the shell window and open a new one, the new one won't remember the change you just made to your PATH. So if you want this change to be saved then you need to add that command at the bottom of your .bashrc or .bash_profile

How to echo with different colors in the Windows command line

I looked at this because I wanted to introduce some simple text colors to a Win7 Batch file. This is what I came up with. Thanks for your help.

@echo off
cls && color 08

rem .... the following line creates a [DEL] [ASCII 8] [Backspace] character to use later
rem .... All this to remove [:]
for /F "tokens=1,2 delims=#" %%a in ('"prompt #$H#$E# & echo on & for %%b in (1) do rem"') do (set "DEL=%%a")

echo.

<nul set /p="("
call :PainText 09 "BLUE is cold"    && <nul set /p=")  ("
call :PainText 02 "GREEN is earth"  && <nul set /p=")  ("
call :PainText F0 "BLACK is night"  && <nul set /p=")"
echo.
<nul set /p="("
call :PainText 04 "RED is blood"    && <nul set /p=")  ("
call :PainText 0e "YELLOW is pee"   && <nul set /p=")  ("
call :PainText 0F "WHITE all colors"&& <nul set /p=")"

goto :end

:PainText
<nul set /p "=%DEL%" > "%~2"
findstr /v /a:%1 /R "+" "%~2" nul
del "%~2" > nul
goto :eof

:end
echo.
pause

java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState

You should do the transaction in a Handler as follows:

@Override
protected void onPostExecute(String result) {
    Log.v("MyFragmentActivity", "onFriendAddedAsyncTask/onPostExecute");
    new Handler().post(new Runnable() {
            public void run() {
                fm = getSupportFragmentManager();
                ft = fm.beginTransaction();
                ft.remove(dummyFragment);
                ft.commit();
            }
        });
}

How to check if $? is not equal to zero in unix shell scripting?

Put it in a variable first and then try to test it, as shown below

ret=$?
if [ $ret -ne 0 ]; then
        echo "In If"
else
        echo "In Else"
fi

This should help.


Edit: If the above is not working as expected then, there is a possibility that you are not using $? at right place. It must be the very next line after the command of which you need to catch the return status. Even if there is any other single command in between the target and you catching it's return status, you'll be retrieving the returns_status of this intermediate command and not the one you are expecting.

BasicHttpBinding vs WsHttpBinding vs WebHttpBinding

You're comparing apples to oranges here:

  • webHttpBinding is the REST-style binding, where you basically just hit a URL and get back a truckload of XML or JSON from the web service

  • basicHttpBinding and wsHttpBinding are two SOAP-based bindings which is quite different from REST. SOAP has the advantage of having WSDL and XSD to describe the service, its methods, and the data being passed around in great detail (REST doesn't have anything like that - yet). On the other hand, you can't just browse to a wsHttpBinding endpoint with your browser and look at XML - you have to use a SOAP client, e.g. the WcfTestClient or your own app.

So your first decision must be: REST vs. SOAP (or you can expose both types of endpoints from your service - that's possible, too).

Then, between basicHttpBinding and wsHttpBinding, there differences are as follows:

  • basicHttpBinding is the very basic binding - SOAP 1.1, not much in terms of security, not much else in terms of features - but compatible to just about any SOAP client out there --> great for interoperability, weak on features and security

  • wsHttpBinding is the full-blown binding, which supports a ton of WS-* features and standards - it has lots more security features, you can use sessionful connections, you can use reliable messaging, you can use transactional control - just a lot more stuff, but wsHttpBinding is also a lot *heavier" and adds a lot of overhead to your messages as they travel across the network

For an in-depth comparison (including a table and code examples) between the two check out this codeproject article: Differences between BasicHttpBinding and WsHttpBinding

Can I call a base class's virtual function if I'm overriding it?

If there are multiple levels of inheritance, you can specify the direct base class, even if the actual implementation is at a lower level.

class Foo
{
public:
  virtual void DoStuff ()
  {
  }
};

class Bar : public Foo
{
};

class Baz : public Bar
{
public:
  void DoStuff ()
  {
    Bar::DoStuff() ;
  }
};

In this example, the class Baz specifies Bar::DoStuff() although the class Bar does not contain an implementation of DoStuff. That is a detail, which Baz does not need to know.

It is clearly a better practice to call Bar::DoStuff than Foo::DoStuff, in case a later version of Bar also overrides this method.

Python Selenium Chrome Webdriver

You need to specify the path where your chromedriver is located.

  1. Download chromedriver for your desired platform from here.

  2. Place chromedriver on your system path, or where your code is.

  3. If not using a system path, link your chromedriver.exe (For non-Windows users, it's just called chromedriver):

    browser = webdriver.Chrome(executable_path=r"C:\path\to\chromedriver.exe")
    

    (Set executable_path to the location where your chromedriver is located.)

    If you've placed chromedriver on your System Path, you can shortcut by just doing the following:

    browser = webdriver.Chrome()

  4. If you're running on a Unix-based operating system, you may need to update the permissions of chromedriver after downloading it in order to make it executable:

    chmod +x chromedriver

  5. That's all. If you're still experiencing issues, more info can be found on this other StackOverflow article: Can't use chrome driver for Selenium

How should I multiple insert multiple records?

You can directly insert a DataTable if it is created correctly.

First make sure that the access table columns have the same column names and similar types. Then you can use this function which I believe is very fast and elegant.

public void AccessBulkCopy(DataTable table)
{
    foreach (DataRow r in table.Rows)
        r.SetAdded();

    var myAdapter = new OleDbDataAdapter("SELECT * FROM " + table.TableName, _myAccessConn);

    var cbr = new OleDbCommandBuilder(myAdapter);
    cbr.QuotePrefix = "[";
    cbr.QuoteSuffix = "]";
    cbr.GetInsertCommand(true);

    myAdapter.Update(table);
}

Getting "project" nuget configuration is invalid error

NOTE: This is mentioned in the question but restarting Visual Studio fixes the issue in most cases.

Updating Visual Studio to 'Update 2' got it working again.

Tools -> Extensions and Updates ->Visual Studio Update 2

As mentioned in the question and the link i posted therein, I'd already updated NuGet Package Manager to 3.4.4 prior to this and restarted to no avail, so I don't know if the combination of both these actions worked.

Check If only numeric values were entered in input. (jQuery)

There is a built-in function in jQuery to check this (isNumeric), so try the following:

var phone = $("input#phone").val();
    if (phone !== "" && !$.isNumeric(phone)) {
  //Check if phone is numeric
  $("label#phone_error").show(); //Show error
  $("input#phone").focus(); //Focus on field
  return false;
}

Rounded corner for textview in android

There is Two steps

1) Create this file in your drawable folder :- rounded_corner.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
         <corners android:radius="10dp" />  // set radius of corner
         <stroke android:width="2dp" android:color="#ff3478" /> // set color and width of border
         <solid android:color="#FFFFFF" /> // inner bgcolor
</shape>

2) Set this file into your TextView as background property.

android:background="@drawable/rounded_corner"

You can use this drawable in Button or Edittext also

Determine .NET Framework version for dll

You have a few options: To get it programmatically, from managed code, use Assembly.ImageRuntimeVersion:

Dim a As Assembly = Reflection.Assembly.ReflectionOnlyLoadFrom("C:\path\assembly.dll")
Dim s As String = a.ImageRuntimeVersion

From the command line, starting in v2.0, ildasm.exe will show it if you double-click on "MANIFEST" and look for "Metadata version". Determining an Image’s CLR Version

What is the "hasClass" function with plain JavaScript?

What do you think about this approach?

<body class="thatClass anotherClass"> </body>

var bodyClasses = document.querySelector('body').className;
var myClass = new RegExp("thatClass");
var trueOrFalse = myClass.test( bodyClasses );

https://jsfiddle.net/5sv30bhe/

How to start Activity in adapter?

Simple way to start activity in Adopter's button onClickListener:

Intent myIntent = new Intent(view.getContext(),Event_Member_list.class);                    myIntent.putExtra("intVariableName", eventsList.get(position).getEvent_id());
                view.getContext().startActivity(myIntent);

Convert textbox text to integer

int num = int.Parse(textBox.Text);

try this. It worked for me

An URL to a Windows shared folder

File protocol URIs are like this

file://[HOST]/[PATH]

that's why you often see file URLs like this (3 slashes) file:///c:\path...

So if the host is server01, you want

file://server01/folder/path....

This is according to the wikipedia page on file:// protocols and checks out with .NET's Uri.IsWellFormedUriString method.

How to reset settings in Visual Studio Code?

Heads up, if clearing the settings doesn't fix your issue you may need to uninstall the extensions as well.

HTTP authentication logout via PHP

Workaround (not a clean, nice (or even working! see comments) solution):

Disable his credentials one time.

You can move your HTTP authentication logic to PHP by sending the appropriate headers (if not logged in):

Header('WWW-Authenticate: Basic realm="protected area"');
Header('HTTP/1.0 401 Unauthorized');

And parsing the input with:

$_SERVER['PHP_AUTH_USER'] // httpauth-user
$_SERVER['PHP_AUTH_PW']   // httpauth-password

So disabling his credentials one time should be trivial.

#pragma once vs include guards?

After engaging in an extended discussion about the supposed performance tradeoff between #pragma once and #ifndef guards vs. the argument of correctness or not (I was taking the side of #pragma once based on some relatively recent indoctrination to that end), I decided to finally test the theory that #pragma once is faster because the compiler doesn't have to try to re-#include a file that had already been included.

For the test, I automatically generated 500 header files with complex interdependencies, and had a .c file that #includes them all. I ran the test three ways, once with just #ifndef, once with just #pragma once, and once with both. I performed the test on a fairly modern system (a 2014 MacBook Pro running OSX, using XCode's bundled Clang, with the internal SSD).

First, the test code:

#include <stdio.h>

//#define IFNDEF_GUARD
//#define PRAGMA_ONCE

int main(void)
{
    int i, j;
    FILE* fp;

    for (i = 0; i < 500; i++) {
        char fname[100];

        snprintf(fname, 100, "include%d.h", i);
        fp = fopen(fname, "w");

#ifdef IFNDEF_GUARD
        fprintf(fp, "#ifndef _INCLUDE%d_H\n#define _INCLUDE%d_H\n", i, i);
#endif
#ifdef PRAGMA_ONCE
        fprintf(fp, "#pragma once\n");
#endif


        for (j = 0; j < i; j++) {
            fprintf(fp, "#include \"include%d.h\"\n", j);
        }

        fprintf(fp, "int foo%d(void) { return %d; }\n", i, i);

#ifdef IFNDEF_GUARD
        fprintf(fp, "#endif\n");
#endif

        fclose(fp);
    }

    fp = fopen("main.c", "w");
    for (int i = 0; i < 100; i++) {
        fprintf(fp, "#include \"include%d.h\"\n", i);
    }
    fprintf(fp, "int main(void){int n;");
    for (int i = 0; i < 100; i++) {
        fprintf(fp, "n += foo%d();\n", i);
    }
    fprintf(fp, "return n;}");
    fclose(fp);
    return 0;
}

And now, my various test runs:

folio[~/Desktop/pragma] fluffy$ gcc pragma.c -DIFNDEF_GUARD
folio[~/Desktop/pragma] fluffy$ ./a.out 
folio[~/Desktop/pragma] fluffy$ time gcc -E main.c  > /dev/null

real    0m0.164s
user    0m0.105s
sys 0m0.041s
folio[~/Desktop/pragma] fluffy$ time gcc -E main.c  > /dev/null

real    0m0.140s
user    0m0.097s
sys 0m0.018s
folio[~/Desktop/pragma] fluffy$ time gcc -E main.c  > /dev/null

real    0m0.193s
user    0m0.143s
sys 0m0.024s
folio[~/Desktop/pragma] fluffy$ gcc pragma.c -DPRAGMA_ONCE
folio[~/Desktop/pragma] fluffy$ ./a.out 
folio[~/Desktop/pragma] fluffy$ time gcc -E main.c  > /dev/null

real    0m0.153s
user    0m0.101s
sys 0m0.031s
folio[~/Desktop/pragma] fluffy$ time gcc -E main.c  > /dev/null

real    0m0.170s
user    0m0.109s
sys 0m0.033s
folio[~/Desktop/pragma] fluffy$ time gcc -E main.c  > /dev/null

real    0m0.155s
user    0m0.105s
sys 0m0.027s
folio[~/Desktop/pragma] fluffy$ gcc pragma.c -DPRAGMA_ONCE -DIFNDEF_GUARD
folio[~/Desktop/pragma] fluffy$ ./a.out 
folio[~/Desktop/pragma] fluffy$ time gcc -E main.c  > /dev/null

real    0m0.153s
user    0m0.101s
sys 0m0.027s
folio[~/Desktop/pragma] fluffy$ time gcc -E main.c  > /dev/null

real    0m0.181s
user    0m0.133s
sys 0m0.020s
folio[~/Desktop/pragma] fluffy$ time gcc -E main.c  > /dev/null

real    0m0.167s
user    0m0.119s
sys 0m0.021s
folio[~/Desktop/pragma] fluffy$ gcc --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include/c++/4.2.1
Apple LLVM version 8.1.0 (clang-802.0.42)
Target: x86_64-apple-darwin17.0.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

As you can see, the versions with #pragma once were indeed slightly faster to preprocess than the #ifndef-only one, but the difference was quite negligible, and would be far overshadowed by the amount of time that actually building and linking the code would take. Perhaps with a large enough codebase it might actually lead to a difference in build times of a few seconds, but between modern compilers being able to optimize #ifndef guards, the fact that OSes have good disk caches, and the increasing speeds of storage technology, it seems that the performance argument is moot, at least on a typical developer system in this day and age. Older and more exotic build environments (e.g. headers hosted on a network share, building from tape, etc.) may change the equation somewhat but in those circumstances it seems more useful to simply make a less fragile build environment in the first place.

The fact of the matter is, #ifndef is standardized with standard behavior whereas #pragma once is not, and #ifndef also handles weird filesystem and search path corner cases whereas #pragma once can get very confused by certain things, leading to incorrect behavior which the programmer has no control over. The main problem with #ifndef is programmers choosing bad names for their guards (with name collisions and so on) and even then it's quite possible for the consumer of an API to override those poor names using #undef - not a perfect solution, perhaps, but it's possible, whereas #pragma once has no recourse if the compiler is erroneously culling an #include.

Thus, even though #pragma once is demonstrably (slightly) faster, I don't agree that this in and of itself is a reason to use it over #ifndef guards.

EDIT: Thanks to feedback from @LightnessRacesInOrbit I've increased the number of header files and changed the test to only run the preprocessor step, eliminating whatever small amount of time was being added in by the compile and link process (which was trivial before and nonexistent now). As expected, the differential is about the same.

How to connect wireless network adapter to VMWare workstation?

Since there is only one WiFi hardware on the computer its not possible to connect one WiFi hardware to multiple WiFi networks, if you want to that I think you have to map WiFi hardware to guest OS and how host you'll have to use some other hardware (may be Ethernet) but I'm sure that it will work in that way as no VM software allow us to allocate Hardware to Guest except for USB, you can also get USB WiFI and allocate that to VM only.

window.onload vs document.onload

Add Event Listener

<script type="text/javascript">
  document.addEventListener("DOMContentLoaded", function(event) {
      // - Code to execute when all DOM content is loaded. 
      // - including fonts, images, etc.
  });
</script>


Update March 2017

1 Vanilla JavaScript

window.addEventListener('load', function() {
    console.log('All assets are loaded')
})


2 jQuery

$(window).on('load', function() {
    console.log('All assets are loaded')
})


Good Luck.

How to find the index of an element in an array in Java?

Very Heavily Edited. I think either you want this:

class CharStorage {
    /** set offset to 1 if you want b=1, o=2, y=3 instead of b=0... */
    private final int offset=0;
    private int array[]=new int[26];

    /** Call this with up to 26 characters to initialize the array.  For 
      * instance, if you pass "boy" it will init to b=0,o=1,y=2.
      */
    void init(String s) {
        for(int i=0;i<s.length;i++)
            store(s.charAt(i)-'a' + offset,i); 
    }

    void store(char ch, int value) {
        if(ch < 'a' || ch > 'z') throw new IllegalArgumentException();
        array[ch-'a']=value;
    }

    int get(char ch) {
        if(ch < 'a' || ch > 'z') throw new IllegalArgumentException();
        return array[ch-'a'];
    }
}

(Note that you may have to adjust the init method if you want to use 1-26 instead of 0-25)

or you want this:

int getLetterPossitionInAlphabet(char c) {
    return c - 'a' + 1
}

The second is if you always want a=1, z=26. The first will let you put in a string like "qwerty" and assign q=0, w=1, e=2, r=3...

How to define a variable in a Dockerfile?

To my knowledge, only ENV allows that, as mentioned in "Environment replacement"

Environment variables (declared with the ENV statement) can also be used in certain instructions as variables to be interpreted by the Dockerfile.

They have to be environment variables in order to be redeclared in each new containers created for each line of the Dockerfile by docker build.

In other words, those variables aren't interpreted directly in a Dockerfile, but in a container created for a Dockerfile line, hence the use of environment variable.


This day, I use both ARG (docker 1.10+, and docker build --build-arg var=value) and ENV.
Using ARG alone means your variable is visible at build time, not at runtime.

My Dockerfile usually has:

ARG var
ENV var=${var}

In your case, ARG is enough: I use it typically for setting http_proxy variable, that docker build needs for accessing internet at build time.

How do I find the stack trace in Visual Studio?

The default shortcut key is Ctrl-Alt-C.

How to escape a while loop in C#

Sorry for the necro-add, but there's something I really wanted to insert that's missing in the existing answers (for anyone like me stumbling onto this question via google): refactor your code. Not only will it make it easier to read/maintain, but it'll often remove these types of control-routing issues entirely.

Here's what I'd lean towards if I had to program the function above:

private const string CatchupLineToIndicateLogDump = "mp4:production/CATCHUP/";
private const string BatchFileLocation = "Command.bat";

private void CheckLog()
{
    while (true)
    {
        Thread.Sleep(5000);
        if (System.IO.File.Exists(BatchFileLocation))
        {
            if (doesFileContainStr(BatchFileLocation, CatchupLineToIndicateLogDump))
            {
                RemoveLogAndDump();
                return;
            }
        }
    }
}

private bool doesFileContainStr(string FileLoc, string StrToCheckFor)
{
  // ... code for checking the existing of a string within a file
  // (and returning back whether the string was found.)
}

private void RemoveLogAndDump()
{
  // ... your code to call RemoveEXELog and kick off test.exe
}

How to remove decimal values from a value of type 'double' in Java

Double d = 1000d;
System.out.println("Normal value :"+d);
System.out.println("Without decimal points :"+d.longValue());

How to rename files and folder in Amazon S3?

There is one software where you can play with the s3 bucket for performing different kinds of operation.

Software Name: S3 Browser

S3 Browser is a freeware Windows client for Amazon S3 and Amazon CloudFront. Amazon S3 provides a simple web services interface that can be used to store and retrieve any amount of data, at any time, from anywhere on the web. Amazon CloudFront is a content delivery network (CDN). It can be used to deliver your files using a global network of edge locations.


If it's only single time then you can use the command line to perform these operations:

(1) Rename the folder in the same bucket:

s3cmd --access_key={access_key} --secret_key={secret_key} mv s3://bucket/folder1/* s3://bucket/folder2/

(2) Rename the Bucket:

s3cmd --access_key={access_key} --secret_key={secret_key} mv s3://bucket1/folder/* s3://bucket2/folder/

Where,

{access_key} = Your valid access key for s3 client

{secret_key} = Your valid scret key for s3 client

It's working fine without any problem.

Thanks

ORDER BY the IN value list

create sequence serial start 1;

select * from comments c
join (select unnest(ARRAY[1,3,2,4]) as id, nextval('serial') as id_sorter) x
on x.id = c.id
order by x.id_sorter;

drop sequence serial;

[EDIT]

unnest is not yet built-in in 8.3, but you can create one yourself(the beauty of any*):

create function unnest(anyarray) returns setof anyelement
language sql as
$$
    select $1[i] from generate_series(array_lower($1,1),array_upper($1,1)) i;
$$;

that function can work in any type:

select unnest(array['John','Paul','George','Ringo']) as beatle
select unnest(array[1,3,2,4]) as id

What's the difference between emulation and simulation?

An "emulator" is a term for a software-based hardware-simulator, but in general the two are synonyms.

Using variable in SQL LIKE statement

If you are using a Stored Procedure:

ALTER PROCEDURE <Name>
(
    @PartialName VARCHAR(50) = NULL
)

SELECT Name 
    FROM <table>
    WHERE Name LIKE '%' + @PartialName + '%'

How can I download HTML source in C#

basically:

using System.Net;
using System.Net.Http;  // in LINQPad, also add a reference to System.Net.Http.dll

WebRequest req = HttpWebRequest.Create("http://google.com");
req.Method = "GET";

string source;
using (StreamReader reader = new StreamReader(req.GetResponse().GetResponseStream()))
{
    source = reader.ReadToEnd();
}

Console.WriteLine(source);

How to checkout a specific Subversion revision from the command line?

I believe the syntax for this is /rev:<revisionNumber>

Documentation for this can be found here

Can you find all classes in a package using reflection?

You need to look up every class loader entry in the class path:

    String pkg = "org/apache/commons/lang";
    ClassLoader cl = ClassLoader.getSystemClassLoader();
    URL[] urls = ((URLClassLoader) cl).getURLs();
    for (URL url : urls) {
        System.out.println(url.getFile());
        File jar = new File(url.getFile());
        // ....
    }   

If entry is directory, just look up in the right subdirectory:

if (jar.isDirectory()) {
    File subdir = new File(jar, pkg);
    if (!subdir.exists())
        continue;
    File[] files = subdir.listFiles();
    for (File file : files) {
        if (!file.isFile())
            continue;
        if (file.getName().endsWith(".class"))
            System.out.println("Found class: "
                    + file.getName().substring(0,
                            file.getName().length() - 6));
    }
}   

If the entry is the file, and it's jar, inspect the ZIP entries of it:

else {
    // try to open as ZIP
    try {
        ZipFile zip = new ZipFile(jar);
        for (Enumeration<? extends ZipEntry> entries = zip
                .entries(); entries.hasMoreElements();) {
            ZipEntry entry = entries.nextElement();
            String name = entry.getName();
            if (!name.startsWith(pkg))
                continue;
            name = name.substring(pkg.length() + 1);
            if (name.indexOf('/') < 0 && name.endsWith(".class"))
                System.out.println("Found class: "
                        + name.substring(0, name.length() - 6));
        }
    } catch (ZipException e) {
        System.out.println("Not a ZIP: " + e.getMessage());
    } catch (IOException e) {
        System.err.println(e.getMessage());
    }
}

Now once you have all class names withing package, you can try loading them with reflection and analyze if they are classes or interfaces, etc.

Using find to locate files that match one of multiple patterns

I needed to remove all files in child dirs except for some files. The following worked for me (three patterns specified):

find . -depth -type f -not -name *.itp -and -not -name *ane.gro -and -not -name *.top -exec rm '{}' +

How do I set Java's min and max heap size through environment variables?

You can't do it using environment variables. It's done via "non standard" options. Run: java -X for details. The options you're looking for are -Xmx and -Xms (this is "initial" heap size, so probably what you're looking for.)

How do you format an unsigned long long int using printf?

Well, one way is to compile it as x64 with VS2008

This runs as you would expect:

int normalInt = 5; 
unsigned long long int num=285212672;
printf(
    "My number is %d bytes wide and its value is %ul. 
    A normal number is %d \n", 
    sizeof(num), 
    num, 
    normalInt);

For 32 bit code, we need to use the correct __int64 format specifier %I64u. So it becomes.

int normalInt = 5; 
unsigned __int64 num=285212672;
printf(
    "My number is %d bytes wide and its value is %I64u. 
    A normal number is %d", 
    sizeof(num),
    num, normalInt);

This code works for both 32 and 64 bit VS compiler.

How to remove undefined and null values from an object using lodash?

To omit all falsey values but keep the boolean primitives this solution helps.

_.omitBy(fields, v => (_.isBoolean(v)||_.isFinite(v)) ? false : _.isEmpty(v));

_x000D_
_x000D_
let fields = {_x000D_
str: 'CAD',_x000D_
numberStr: '123',_x000D_
number  : 123,_x000D_
boolStrT: 'true',_x000D_
boolStrF: 'false',_x000D_
boolFalse : false,_x000D_
boolTrue  : true,_x000D_
undef: undefined,_x000D_
nul: null,_x000D_
emptyStr: '',_x000D_
array: [1,2,3],_x000D_
emptyArr: []_x000D_
};_x000D_
_x000D_
let nobj = _.omitBy(fields, v => (_.isBoolean(v)||_.isFinite(v)) ? false : _.isEmpty(v));_x000D_
_x000D_
console.log(nobj);
_x000D_
<script src="https://cdn.jsdelivr.net/npm/[email protected]/lodash.min.js"></script>
_x000D_
_x000D_
_x000D_

Delete column from SQLite table

From: http://www.sqlite.org/faq.html:

(11) How do I add or delete columns from an existing table in SQLite.

SQLite has limited ALTER TABLE support that you can use to add a column to the end of a table or to change the name of a table. If you want to make more complex changes in the structure of a table, you will have to recreate the table. You can save existing data to a temporary table, drop the old table, create the new table, then copy the data back in from the temporary table.

For example, suppose you have a table named "t1" with columns names "a", "b", and "c" and that you want to delete column "c" from this table. The following steps illustrate how this could be done:

BEGIN TRANSACTION;
CREATE TEMPORARY TABLE t1_backup(a,b);
INSERT INTO t1_backup SELECT a,b FROM t1;
DROP TABLE t1;
CREATE TABLE t1(a,b);
INSERT INTO t1 SELECT a,b FROM t1_backup;
DROP TABLE t1_backup;
COMMIT;

Redirect to specified URL on PHP script completion?

<?php

// do something here

header("Location: http://example.com/thankyou.php");
?>

How to read a text file?

It depends on what you are trying to do.

file, err := os.Open("file.txt")
fmt.print(file)

The reason it outputs &{0xc082016240}, is because you are printing the pointer value of a file-descriptor (*os.File), not file-content. To obtain file-content, you may READ from a file-descriptor.


To read all file content(in bytes) to memory, ioutil.ReadAll

package main

import (
    "fmt"
    "io/ioutil"
    "os"
    "log"
)

func main() {
    file, err := os.Open("file.txt")
    if err != nil {
        log.Fatal(err)
    }
    defer func() {
        if err = f.Close(); err != nil {
            log.Fatal(err)
        }
    }()


  b, err := ioutil.ReadAll(file)
  fmt.Print(b)
}

But sometimes, if the file size is big, it might be more memory-efficient to just read in chunks: buffer-size, hence you could use the implementation of io.Reader.Read from *os.File

func main() {
    file, err := os.Open("file.txt")
    if err != nil {
        log.Fatal(err)
    }
    defer func() {
        if err = f.Close(); err != nil {
            log.Fatal(err)
        }
    }()


    buf := make([]byte, 32*1024) // define your buffer size here.

    for {
        n, err := file.Read(buf)

        if n > 0 {
            fmt.Print(buf[:n]) // your read buffer.
        }

        if err == io.EOF {
            break
        }
        if err != nil {
            log.Printf("read %d bytes: %v", n, err)
            break
        }
    }

}

Otherwise, you could also use the standard util package: bufio, try Scanner. A Scanner reads your file in tokens: separator.

By default, scanner advances the token by newline (of course you can customise how scanner should tokenise your file, learn from here the bufio test).

package main

import (
    "fmt"
    "os"
    "log"
    "bufio"
)

func main() {
    file, err := os.Open("file.txt")
    if err != nil {
        log.Fatal(err)
    }
    defer func() {
        if err = f.Close(); err != nil {
            log.Fatal(err)
        }
    }()

    scanner := bufio.NewScanner(file)

    for scanner.Scan() {             // internally, it advances token based on sperator
        fmt.Println(scanner.Text())  // token in unicode-char
        fmt.Println(scanner.Bytes()) // token in bytes

    }
}

Lastly, I would also like to reference you to this awesome site: go-lang file cheatsheet. It encompassed pretty much everything related to working with files in go-lang, hope you'll find it useful.

Switch on ranges of integers in JavaScript

A more readable version of the ternary might look like:

var x = this.dealer;
alert(t < 1 || t > 11
  ? 'none'
    : t < 5
  ? 'less than five'
    : t <= 8
  ? 'between 5 and 8'
  : 'Between 9 and 11');

iOS - UIImageView - how to handle UIImage image orientation

here is a workable sample cod, considering the image orientation:

#define rad(angle) ((angle) / 180.0 * M_PI)
- (CGAffineTransform)orientationTransformedRectOfImage:(UIImage *)img
{
    CGAffineTransform rectTransform;
    switch (img.imageOrientation)
    {
        case UIImageOrientationLeft:
            rectTransform = CGAffineTransformTranslate(CGAffineTransformMakeRotation(rad(90)), 0, -img.size.height);
            break;
        case UIImageOrientationRight:
            rectTransform = CGAffineTransformTranslate(CGAffineTransformMakeRotation(rad(-90)), -img.size.width, 0);
            break;
        case UIImageOrientationDown:
            rectTransform = CGAffineTransformTranslate(CGAffineTransformMakeRotation(rad(-180)), -img.size.width, -img.size.height);
            break;
        default:
            rectTransform = CGAffineTransformIdentity;
    };

    return CGAffineTransformScale(rectTransform, img.scale, img.scale);
}


- (UIImage *)croppedImage:(UIImage*)orignialImage InRect:(CGRect)visibleRect{
    //transform visible rect to image orientation
    CGAffineTransform rectTransform = [self orientationTransformedRectOfImage:orignialImage];
    visibleRect = CGRectApplyAffineTransform(visibleRect, rectTransform);

    //crop image
    CGImageRef imageRef = CGImageCreateWithImageInRect([orignialImage CGImage], visibleRect);
    UIImage *result = [UIImage imageWithCGImage:imageRef scale:orignialImage.scale orientation:orignialImage.imageOrientation];
    CGImageRelease(imageRef);
    return result;
}

onKeyDown event not working on divs in React

The answer with

<div 
    className="player"
    onKeyDown={this.onKeyPressed}
    tabIndex={0}
>

works for me, please note that the tabIndex requires a number, not a string, so tabIndex="0" doesn't work.

Are one-line 'if'/'for'-statements good Python style?

Well,

if "exam" in "example": print "yes!"

Is this an improvement? No. You could even add more statements to the body of the if-clause by separating them with a semicolon. I recommend against that though.

How to do join on multiple criteria, returning all combinations of both criteria

create table a1
(weddingTable INT(3),
 tableSeat INT(3),
 tableSeatID INT(6),
 Name varchar(10));

insert into a1
 (weddingTable, tableSeat, tableSeatID, Name)
 values (001,001,001001,'Bob'),
 (001,002,001002,'Joe'),
 (001,003,001003,'Dan'),
 (002,001,002001,'Mark');

create table a2
 (weddingTable int(3),
 tableSeat int(3),
 Meal varchar(10));

insert into a2
(weddingTable, tableSeat, Meal)
values 
(001,001,'Chicken'),
(001,002,'Steak'),
(001,003,'Salmon'),
(002,001,'Steak');

select x.*, y.Meal

from a1 as x
JOIN a2 as y ON (x.weddingTable = y.weddingTable) AND (x.tableSeat = y. tableSeat);

What is the simplest way to write the contents of a StringBuilder to a text file in .NET 1.1?

You still have access to StreamWriter:

using (System.IO.StreamWriter file = new System.IO.StreamWriter(@"\hereIam.txt"))
{
    file.WriteLine(sb.ToString()); // "sb" is the StringBuilder
}

From the MSDN documentation: Writing to a Text File (Visual C#).

For newer versions of the .NET Framework (Version 2.0. onwards), this can be achieved with one line using the File.WriteAllText method.

System.IO.File.WriteAllText(@"C:\TextFile.txt", stringBuilder.ToString());

SQL Server AS statement aliased column within WHERE statement

Logical Processing Order of the SELECT statement

The following steps show the logical processing order, or binding order, for a SELECT statement. This order determines when the objects defined in one step are made available to the clauses in subsequent steps. For example, if the query processor can bind to (access) the tables or views defined in the FROM clause, these objects and their columns are made available to all subsequent steps. Conversely, because the SELECT clause is step 8, any column aliases or derived columns defined in that clause cannot be referenced by preceding clauses. However, they can be referenced by subsequent clauses such as the ORDER BY clause. Note that the actual physical execution of the statement is determined by the query processor and the order may vary from this list.

  1. FROM
  2. ON
  3. JOIN
  4. WHERE
  5. GROUP BY
  6. WITH CUBE or WITH ROLLUP
  7. HAVING
  8. SELECT
  9. DISTINCT
  10. ORDER BY
  11. TOP

Source: http://msdn.microsoft.com/en-us/library/ms189499%28v=sql.110%29.aspx

How to declare and add items to an array in Python?

No, if you do:

array = {}

IN your example you are using array as a dictionary, not an array. If you need an array, in Python you use lists:

array = []

Then, to add items you do:

array.append('a')

console.log timestamps in Chrome?

extended the very nice solution "with format string" from JSmyth to also support

  • all the other console.log variations (log,debug,info,warn,error)
  • including timestamp string flexibility param (e.g. 09:05:11.518 vs. 2018-06-13T09:05:11.518Z)
  • including fallback in case console or its functions do not exist in browsers

.

var Utl = {

consoleFallback : function() {

    if (console == undefined) {
        console = {
            log : function() {},
            debug : function() {},
            info : function() {},
            warn : function() {},
            error : function() {}
        };
    }
    if (console.debug == undefined) { // IE workaround
        console.debug = function() {
            console.info( 'DEBUG: ', arguments );
        }
    }
},


/** based on timestamp logging: from: https://stackoverflow.com/a/13278323/1915920 */
consoleWithTimestamps : function( getDateFunc = function(){ return new Date().toJSON() } ) {

    console.logCopy = console.log.bind(console)
    console.log = function() {
        var timestamp = getDateFunc()
        if (arguments.length) {
            var args = Array.prototype.slice.call(arguments, 0)
            if (typeof arguments[0] === "string") {
                args[0] = "%o: " + arguments[0]
                args.splice(1, 0, timestamp)
                this.logCopy.apply(this, args)
            } else this.logCopy(timestamp, args)
        }
    }
    console.debugCopy = console.debug.bind(console)
    console.debug = function() {
        var timestamp = getDateFunc()
        if (arguments.length) {
            var args = Array.prototype.slice.call(arguments, 0)
            if (typeof arguments[0] === "string") {
                args[0] = "%o: " + arguments[0]
                args.splice(1, 0, timestamp)
                this.debugCopy.apply(this, args)
            } else this.debugCopy(timestamp, args)
        }
    }
    console.infoCopy = console.info.bind(console)
    console.info = function() {
        var timestamp = getDateFunc()
        if (arguments.length) {
            var args = Array.prototype.slice.call(arguments, 0)
            if (typeof arguments[0] === "string") {
                args[0] = "%o: " + arguments[0]
                args.splice(1, 0, timestamp)
                this.infoCopy.apply(this, args)
            } else this.infoCopy(timestamp, args)
        }
    }
    console.warnCopy = console.warn.bind(console)
    console.warn = function() {
        var timestamp = getDateFunc()
        if (arguments.length) {
            var args = Array.prototype.slice.call(arguments, 0)
            if (typeof arguments[0] === "string") {
                args[0] = "%o: " + arguments[0]
                args.splice(1, 0, timestamp)
                this.warnCopy.apply(this, args)
            } else this.warnCopy(timestamp, args)
        }
    }
    console.errorCopy = console.error.bind(console)
    console.error = function() {
        var timestamp = getDateFunc()
        if (arguments.length) {
            var args = Array.prototype.slice.call(arguments, 0)
            if (typeof arguments[0] === "string") {
                args[0] = "%o: " + arguments[0]
                args.splice(1, 0, timestamp)
                this.errorCopy.apply(this, args)
            } else this.errorCopy(timestamp, args)
        }
    }
}
}  // Utl

Utl.consoleFallback()
//Utl.consoleWithTimestamps()  // defaults to e.g. '2018-06-13T09:05:11.518Z'
Utl.consoleWithTimestamps( function(){ return new Date().toJSON().replace( /^.+T(.+)Z.*$/, '$1' ) } )  // e.g. '09:05:11.518'

How do I make a stored procedure in MS Access?

If you mean the type of procedure you find in SQL Server, prior to 2010, you can't. If you want a query that accepts a parameter, you can use the query design window:

 PARAMETERS SomeParam Text(10);
 SELECT Field FROM Table
 WHERE OtherField=SomeParam

You can also say:

CREATE PROCEDURE ProcedureName
   (Parameter1 datatype, Parameter2 datatype) AS
   SQLStatement

From: http://msdn.microsoft.com/en-us/library/aa139977(office.10).aspx#acadvsql_procs

Note that the procedure contains only one statement.

multiple conditions for filter in spark data frames

You can try, (filtering with 1 object like a list or a set of values)

ds = ds.filter(functions.col(COL_NAME).isin(myList));

or as @Tony Fraser suggested, you can try, (with a Seq of objects)

ds = ds.filter(functions.col(COL_NAME).isin(mySeq));

All the answers are correct but most of them do not represent a good coding style. Also, you should always consider the variable length of arguments for the future, even though they are static at a certain point in time.

How to dynamically load a Python class

module = __import__("my_package/my_module")
the_class = getattr(module, "MyClass")
obj = the_class()