System.Data Namespace   IDbCommand Class

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

[ VB ]
NotOverridable Public Function ExecuteNonQuery ( ) As Integer

[ C# ]
public int ExecuteNonQuery ( );

[ C++ ]
public: __sealed int ExecuteNonQuery ( );

[ JScript ]
public function ExecuteNonQuery ( ) : int;

The number of rows affected.

Exception Type	Condition
InvalidOperationException	Occurs when the Connection does not exist or is not open.

You can use the 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.

Although the 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.

The following examples demonstrate using the ExecuteNonQuery method to perform the Transact-SQL INSERT, UPDATE, and DELETE statements of a given SqlCommand object.

Adding a Row of Data to a Database Run Sample | View Source

Editing a Row of Data in a Database Run Sample | View Source

Removing a Row of Data in a Database Run Sample | View Source

IDbCommand Members

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