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OdbcCommand.ExecuteNonQuery Method

Executes an SQL statement against the Connection and returns the number of rows affected.

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

public override int ExecuteNonQuery ()
public int ExecuteNonQuery ()
public override function ExecuteNonQuery () : int
Not applicable.

Return Value

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.

Exception typeCondition

InvalidOperationException

The connection does not exist.

-or-

The connection is not open.

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, without using a DataSet, by executing UPDATE, INSERT, or DELETE statements.

You can also use ExecuteNonQuery to execute multiple SQL statements if the underlying ODBC driver supports this functionality. In this case, the return value is the number of rows affected by all statements in the command.

Although ExecuteNonQuery returns no 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. If a rollback occurs, the return value is also -1.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1

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