commands-generating-multiple-rowset-results.md

title	description	author	ms.author	ms.date	ms.service	ms.subservice	ms.topic	helpviewer_keywords
Commands generating multiple-rowset results (OLE DB driver)	Learn how OLE DB Driver for SQL Server returns multiple rowsets for batched SQL statements and when stored procedures implement batched SQL statements.	David-Engel	v-davidengel	06/14/2018	sql	connectivity	reference	multiple rowsets rowsets [OLE DB], multiple OLE DB Driver for SQL Server, commands OLE DB Driver for SQL Server, multiple rowsets commands [OLE DB] multiple-rowset results

Commands Generating Multiple-Rowset Results

[!INCLUDE SQL Server]

[!INCLUDEDriver_OLEDB_Download]

The OLE DB Driver for SQL Server can return multiple rowsets from [!INCLUDEssNoVersion] statements. [!INCLUDEssNoVersion] statements return multiple-rowset results under the following conditions:

• Batched SQL statements are submitted as a single command.

• Stored procedures implement a batch of SQL statements.

Batches

The OLE DB Driver for SQL Server recognizes the semicolon character as a batch delimiter for SQL statements:

WCHAR*       wSQLString = L"SELECT * FROM Categories; "  
                          L"SELECT * FROM Products";  

Sending multiple SQL statements in one batch is more efficient than executing each SQL statement separately. Sending one batch reduces the network round trips from the client to the server.

Stored Procedures

[!INCLUDEssNoVersion] returns a result set for each statement in a stored procedure, so most [!INCLUDEssNoVersion] stored procedures return multiple result sets.

In This Section

• Using IMultipleResults to Process Multiple Result Sets

See Also

Commands