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OleDbCommand::ExecuteNonQuery Method

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

Namespace:  System.Data.OleDb
Assembly:  System.Data (in System.Data.dll)

public:
virtual int ExecuteNonQuery() override

Return Value

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

Implements

IDbCommand::ExecuteNonQuery()

ExceptionCondition
InvalidOperationException

The connection does not exist.

-or-

The connection is not open.

-or-

Cannot execute a command within a transaction context that differs from the context in which the connection was originally enlisted.

You can use the ExecuteNonQuery to perform catalog operations, for example, to query the structure of a database or to create database objects such as tables, or to change the data in a database without using a DataSet by executing UPDATE, INSERT, or DELETE statements.

Although the 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.

The following example creates an OleDbCommand and then executes it using ExecuteNonQuery. The example is passed a string that is an SQL statement such as UPDATE, INSERT, or DELETE, and a string to use to connect to the data source.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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