.NET Framework Class Library
DbCommand..::.ExecuteNonQuery Method

Executes a SQL statement against a connection object.

Namespace:  System.Data.Common
Assembly:  System.Data (in System.Data.dll)
Syntax

Visual Basic (Declaration)
Public MustOverride Function ExecuteNonQuery As Integer
Visual Basic (Usage)
Dim instance As DbCommand
Dim returnValue As Integer

returnValue = instance.ExecuteNonQuery()
C#
public abstract int ExecuteNonQuery()
Visual C++
public:
virtual int ExecuteNonQuery() abstract
JScript
public abstract function ExecuteNonQuery() : int

Return Value

Type: System..::.Int32
The number of rows affected.

Implements

IDbCommand..::.ExecuteNonQuery()()()
Remarks

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.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
See Also

Reference

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