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The general form of the for statement can be expressed as follows: When using this version of the for statement, keep in mind that: 1  The initialization expression initializes the loop; it's executed once, as the loop begins. 2  When the termination expression evaluates to false, the loop terminates.
Executes a statement that does not return a result set, such as an INSERT, UPDATE, DELETE, or data definition statement. Syntax Visual Basic Public Overrides Function ExecuteNonQuery() As Integer C# public override int ExecuteNonQuery(); Return value The number of rows affected. Remarks You can use ExecuteNonQuery to change the data in a database without using a DataSet. Do this by executing UPDATE, INSERT, or DELETE statements. Although ExecuteNonQuery does not return any rows, output parameters or return values that are 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.