I'm working on converting a stored procedure from SQL server to Oracle. This stored procedure provides a direct resultset. I mean that if you call the stored procedure in eg Management Studio you directly obtain the resultset.
By converting to Oracle I walk against the problem that I in Oracle will not display the resultset
I searched on the Internet and have seen that the stored procedure should yield a REF CURSOR, but I still walk with the problem to write a little piece of code to obtain the resultset en process that.
Pseudo Code:
Call stored procedure and obtain cursor Do something with that cursor so that my resultset appears
Someone an idea?
This question is related to
oracle
stored-procedures
plsql
Hi I know this was asked a while ago but I've just figured this out and it might help someone else. Not sure if this is exactly what you're looking for but this is how I call a stored proc and view the output using SQL Developer.
In SQL Developer when viewing the proc, right click and choose 'Run' or select Ctrl+F11 to bring up the Run PL/SQL window. This creates a template with the input and output params which you need to modify. My proc returns a sys_refcursor. The tricky part for me was declaring a row type that is exactly equivalent to the select stmt / sys_refcursor being returned by the proc:
DECLARE
P_CAE_SEC_ID_N NUMBER;
P_FM_SEC_CODE_C VARCHAR2(200);
P_PAGE_INDEX NUMBER;
P_PAGE_SIZE NUMBER;
v_Return sys_refcursor;
type t_row is record (CAE_SEC_ID NUMBER,FM_SEC_CODE VARCHAR2(7),rownum number, v_total_count number);
v_rec t_row;
BEGIN
P_CAE_SEC_ID_N := NULL;
P_FM_SEC_CODE_C := NULL;
P_PAGE_INDEX := 0;
P_PAGE_SIZE := 25;
CAE_FOF_SECURITY_PKG.GET_LIST_FOF_SECURITY(
P_CAE_SEC_ID_N => P_CAE_SEC_ID_N,
P_FM_SEC_CODE_C => P_FM_SEC_CODE_C,
P_PAGE_INDEX => P_PAGE_INDEX,
P_PAGE_SIZE => P_PAGE_SIZE,
P_FOF_SEC_REFCUR => v_Return
);
-- Modify the code to output the variable
-- DBMS_OUTPUT.PUT_LINE('P_FOF_SEC_REFCUR = ');
loop
fetch v_Return into v_rec;
exit when v_Return%notfound;
DBMS_OUTPUT.PUT_LINE('sec_id = ' || v_rec.CAE_SEC_ID || 'sec code = ' ||v_rec.FM_SEC_CODE);
end loop;
END;
CREATE OR REPLACE PROCEDURE SP_Invoices(p_nameClient IN CHAR)
AS
BEGIN
FOR c_invoice IN
(
SELECT CodeInvoice, NameClient FROM Invoice
WHERE NameClient = p_nameClient
)
LOOP
dbms_output.put_line('Code Invoice: ' || c_invoice.CodeInvoice);
dbms_output.put_line('Name Client : ' || c_invoice.NameClient );
END LOOP;
END;
Executing in SQL Developer:
BEGIN
SP_Invoices('Perico de los palotes');
END;
-- Or:
EXEC SP_Invoices('Perico de los palotes');
Output:
> Code Invoice: 1
> Name Client : Perico de los palotes
> Code Invoice: 2
> Name Client : Perico de los palotes
In SQL Plus:
SQL> var r refcursor
SQL> set autoprint on
SQL> exec :r := function_returning_refcursor();
Replace the last line with a call to your procedure / function and the contents of the refcursor will be displayed
FYI as of Oracle 12c, you can do this:
CREATE OR REPLACE PROCEDURE testproc(n number)
AS
cur SYS_REFCURSOR;
BEGIN
OPEN cur FOR SELECT object_id,object_name from all_objects where rownum < n;
DBMS_SQL.RETURN_RESULT(cur);
END;
/
EXEC testproc(3);
OBJECT_ID OBJECT_NAME
---------- ------------
100 ORA$BASE
116 DUAL
This was supposed to get closer to other databases, and ease migrations. But it's not perfect to me, for instance SQL developer won't display it nicely as a normal SELECT.
I prefer the output of pipeline functions, but they need more boilerplate to code.
more info: https://oracle-base.com/articles/12c/implicit-statement-results-12cr1
My solution was to create a pipelined function. The advantages are that the query can be a single line:
select * from table(yourfunction(param1, param2));
To define the function you would need to do something like the following:
-- Declare the record columns
TYPE your_record IS RECORD(
my_col1 VARCHAR2(50),
my_col2 varchar2(4000)
);
TYPE your_results IS TABLE OF your_record;
-- Declare the function
function yourfunction(a_Param1 varchar2, a_Param2 varchar2)
return your_results pipelined is
rt your_results;
begin
-- Your query to load the table type
select s.col1,s.col2
bulk collect into rt
from your_table s
where lower(s.col1) like lower('%'||a_Param1||'%');
-- Stuff the results into the pipeline..
if rt.count > 0 then
for i in rt.FIRST .. rt.LAST loop
pipe row (rt(i));
end loop;
end if;
-- Add more results as you please....
return;
end find;
And as mentioned above, all you would do to view your results is:
select * from table(yourfunction(param1, param2)) t order by t.my_col1;
Oracle is not sql server. Try the following in SQL Developer
variable rc refcursor;
exec testproc(:rc2);
print rc2
Source: Stackoverflow.com