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DbCommand.ExecuteNonQuery Method

Note: This method is new in the .NET Framework version 2.0.

Executes a SQL statement against a connection object.

Namespace: System.Data.Common
Assembly: System.Data (in system.data.dll)

public abstract int ExecuteNonQuery ()
public abstract int ExecuteNonQuery ()
public abstract function ExecuteNonQuery () : int

Return Value

The number of rows affected.

You can use ExecuteNonQuery to perform catalog operations (for example, querying the structure of a database or creating database objects such as tables), or to change the data in a database by executing UPDATE, INSERT, or DELETE statements.

Although ExecuteNonQuery does not return any rows, any output parameters or return values mapped to parameters are populated with data.

For UPDATE, INSERT, and DELETE statements, the return value is the number of rows affected by the command. For all other types of statements, the return value is -1.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0

.NET Compact Framework

Supported in: 2.0

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