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HomeDatabaseMysql TutorialWhy Does My Python Code Fail to Connect to Microsoft SQL Server, and How Can I Fix the ''IM002' Error Using pyodbc?

Why Does My Python Code Fail to Connect to Microsoft SQL Server, and How Can I Fix the

Connecting to Microsoft SQL Server Using Python: Resolving Connection Issues

In an attempt to connect to SQL Server from Python, a user encountered the error "'IM002' [IM002] Microsoft Data source name not found and no default driver specified (0) (SQLDriverConnect)." This indicates a problem during the connection setup.

The provided code suggests the use of the pyodbc library, which is a popular choice for connecting to SQL Server. However, the connection string provided in the code has a potential issue.

The driver specified in the connection string is "{SQLOLEDB}" which is an outdated driver. It is recommended to use the newer driver "{SQL Server Native Client 11.0}".

Here's the modified code:

import pyodbc
cnxn = pyodbc.connect("Driver={SQL Server Native Client 11.0};"
                      "Server=server_name;"
                      "Database=db_name;"
                      "Trusted_Connection=yes;")

This modified code uses the updated driver, which is more likely to be compatible with the user's environment. It is worth noting that the server name and database name need to be replaced with the appropriate values for the SQL Server instance and database being connected to.

Additionally, the user mentioned having connected through ODBC links before in SAS. It is important to ensure that the necessary ODBC drivers are installed and configured properly on the system for pyodbc to work.

The above is the detailed content of Why Does My Python Code Fail to Connect to Microsoft SQL Server, and How Can I Fix the ''IM002' Error Using pyodbc?. For more information, please follow other related articles on the PHP Chinese website!

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