PYODBC--Data source name not found and no default driver specified

Question

import pyodbc connection   pyodbc connect  Driver    SQL Server  Server SIWSQL43A SIMSSPROD43A                                Database CSM reporting Trusted Connection yes      Error   connection   pyodbc connect  Driver    SQL Server  Server SIWSQL43A SIMSSPROD43A       pyodbc Error    IM002     IM002   Microsoft  ODBC Driver Manager  Data source name not found and no default driver specified  0   SQLDriverConnect

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I am also getting same error  Finally i have found the solution  We can search odbc in our local program and check for version of odbc  In my case i have version 17 and 11 so  i have used 17 in connection string    DRIVER  ODBC Driver 17 for SQL Server

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I have had the same error on python3 and this help me  conn   pyodbc connect  DRIVER  ODBC Driver 17 for SQL Server                           SERVER YourServerName                          DATABASE YourDatabaseName UID USER NAME PWD PASS WORD     remember python is case-sensitive so you have to mention DRIVER SERVER     in upper case  and you can visit this link for more information  https   docs microsoft com en-us sql connect python pyodbc step-3-proof-of-concept-connecting-to-sql-using-pyodbc view sql-server-ver15

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Try below   import pyodbc  server    servername   database    DB   username    UserName   password    Password   cnxn   pyodbc connect  DRIVER  ODBC Driver 13 for SQL Server  SERVER   server   DATABASE   database   UID   username   PWD    password   cursor   cnxn cursor     cursor execute  SELECT   FROM Tbl    for row in cursor      print  row    r     row

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for error   pyodbc InterfaceError    IM002     IM002   Microsoft  ODBC Driver Manager  Data source name not found and no default driver specified  0   SQLDriverConnect     No space between the driver and event  connection   Driver  SQL Server Native Client 11 0        Server servername        Database dbname        Trusted Connection yes

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Have you installed any product of SQL in your system machine   You can download and install  ODBC Driver 13 or any version  for SQL Server  and try to run if you havent alerady done

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You need to download Microsoft ODBC Driver 13 for SQL Server from Microsoft ODBC Driver 13

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Do not put a space after the Driver keyword in the connection string   This fails on Windows        conn str         r DRIVER    SQL Server        r SERVER  local  SQLEXPRESS       r DATABASE myDb       r Trusted Connection yes     cnxn   pyodbc connect conn str        but this works   conn str         r DRIVER  SQL Server        r SERVER  local  SQLEXPRESS       r DATABASE myDb       r Trusted Connection yes     cnxn   pyodbc connect conn str

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Below connection string is working  import pandas as pd import pyodbc as odbc  sql conn   odbc connect  DRIVER  ODBC Driver 13 for SQL Server  SERVER SERVER NAME DATABASE DATABASE NAME UID USERNAME PWD PASSWORD     query    SELECT   FROM admin TABLE NAME  df   pd read sql query  sql conn  df head

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You could try   import pyodbc   Using a DSN cnxn   pyodbc connect  DSN odbc datasource name UID db user id PWD db password     Note  You will need to know the  odbc datasource name   In Windows you can search for ODBC Data Sources  The name will look something like this   Data Source Name Example

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I was facing the same issue whole day wasted and I tried all possible ODBC Driver values import pyodbc connection   pyodbc connect  Driver    SQL Server  Server ServerName                                Database Database Name Trusted Connection yes     In place of Driver    SQL Server  we can try these option one by one or just you can use with you corresponding setting  somehow in my case the last one works    Driver  ODBC Driver 11 for SQL Server  for SQL Server 2005 - 2014 Driver  ODBC Driver 13 for SQL Server  for SQL Server 2005 - 2016 Driver  ODBC Driver 13 1 for SQL Server  for SQL Server 2008 - 2016 Driver  ODBC Driver 17 for SQL Server  for SQL Server 2008 - 2017  Driver  SQL Server  for SQL Server 2000 Driver  SQL Native Client  for SQL Server 2005 Driver  SQL Server Native Client 10 0  for SQL Server 2008 Driver  SQL Server Native Client 11 0  for SQL Server 2012

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if any one are trying to access the database which is hosted in azure then try to give the driver as ODBC Driver 17 for SQL Server

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Apart from the other answers  that considered the connection string itself  it might simply be necessary to download the correct odbc driver  My client just faced this issue when executing a python app  that required it  you can check this by pressing windows   typing  odbc   the correct driver should appear in the drivers tab

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The below code works magic    SQLALCHEMY DATABASE URI    mssql pyodbc    lt servername gt   lt dbname gt  driver SQL Server Native Client 11 0 trusted connection yes UID                                     lt db name gt  PWD  lt pass gt

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Create a DSN something like this  ASEDEV  for your connection and try to use DSN instead of DRIVER like below  enter code here import pyodbc cnxn   pyodbc connect  DSN ASEDEV User ID sa Password sybase123   mycur   cnxn cursor   mycur execute  quot select   from master  sysdatabases quot   row   mycur fetchone   while row      print row      row   mycur fetchone

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I faced this issue and was looking for the solution  Finally I was trying all the options from the https   github com mkleehammer pyodbc wiki Connecting-to-SQL-Server-from-Windows   and for my MSSQL 12 only   ODBC Driver 11 for SQL Server   works  Just try it one by one  And the second important thing you have to get correct server name  because I thought preciously that I need to set  SQLEXPRESS in all of the cases  but found out that you have to set EXACTLY what you see in the server properties  Example on the screenshot

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I m using      Django 2 2   and got the same error while connecting to sql-server 2012  Spent lot of time to solve this issue and finally this worked   I changed       driver    ODBC Driver 13 for SQL Server    to      driver    SQL Server Native Client 11 0    and it worked

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I ve met same problem and fixed it changing connection string like below  Write    DRIVER  ODBC Driver 13 for SQL Server     instead of   DRIVER  SQL Server

[python] PYODBC--Data source name not found and no default driver specified

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