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title Delete a Data Source (ODBC) | Microsoft Docs
ms.custom
ms.date 06/13/2017
ms.prod sql-server-2014
ms.reviewer
ms.technology native-client
ms.topic reference
helpviewer_keywords
data sources [ODBC]
ms.assetid 910e3e16-7b91-49d8-80bb-b4243926afaa
author MightyPen
ms.author genemi
manager craigg

Delete a Data Source (ODBC)

You can delete a data source by using ODBC Administrator, programmatically (by using SQLConfigDataSource), or by deleting a file (if a file data source name).

To delete a data source by using ODBC Administrator

  1. In Control Panel, open Administrative Tools, and then double-click Data Sources (ODBC). Alternatively, you can run odbcad32.exe from the command prompt.

  2. Click the User DSN, System DSN, or File DSN tab.

  3. Click the data source to delete.

  4. Click Remove, and then confirm the deletion.

Example

To programmatically delete a data source, call SQLConfigDataSource using either ODBC_REMOVE_DSN or ODBC_REMOVE_SYS_DSN as the second parameter.

The following sample shows how you can programmatically delete a data source.

// remove_odbc_data_source.cpp  
// compile with: ODBCCP32.lib user32.lib  
#include <iostream>  
#include <windows.h>  
#include <odbcinst.h>  
  
int main() {   
   LPCSTR provider = "SQL Server";   // Windows SQL Server Driver  
   LPCSTR provider = "SQL Server";   // Windows SQL Server driver  
   LPCSTR provider2 = "SQL Server Native Client 11.0";   // SQL Server 2012 Native Client driver  
   LPCSTR dsnname = "DSN=data2";  
   BOOL retval = SQLConfigDataSource(NULL, ODBC_REMOVE_DSN, provider, dsnname);  
   std::cout << retval;   // 1 if successful  
}

See Also

Configuring the SQL Server ODBC Driver How-to Topics