---
title: "SQLSetEnvAttr | Microsoft Docs"
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# SQLSetEnvAttr
[!INCLUDE[appliesto-ss-asdb-asdw-pdw-md](../../includes/appliesto-ss-asdb-asdw-pdw-md.md)]
[!INCLUDE[SNAC_Deprecated](../../includes/snac-deprecated.md)]

  The [ODBC Programmer's Reference](http://go.microsoft.com/fwlink/?LinkId=45250) defines how ODBC drivers should interpret the **SQLSetEnvAttr** attribute specifications from applications written to either the ODBC 2.*x* or ODBC 3.*x* API. The [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] Native Client ODBC driver complies with those rules.  
  
 One of the attributes controlled by **SQLSetEnvAttr** is whether connection pooling is to be used. If connection pooling is used with the [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] Native Client ODBC driver, the *DriverCompletion* parameter must be set to SQL_DRIVER_NOPROMPT when connecting with either [SQLDriverConnect](../../relational-databases/native-client-odbc-api/sqldriverconnect.md) or **SQLConnect**.  
  
## See Also  
 [SQLSetEnvAttr Function](http://go.microsoft.com/fwlink/?LinkId=59369)   
 [ODBC API Implementation Details](../../relational-databases/native-client-odbc-api/odbc-api-implementation-details.md)