Column.Alter Column.Alter Column.Alter Method


Updates any Column object property changes on the instance of SQL Server.

 virtual void Alter();
public void Alter ();
Public Sub Alter ()


Working with Database Objects


The Alter method updates any changes that have been made to the Column object's properties since the Column object was created or since the last Alter statement. The modifications are combined and sent to the instance of SQL Server in a single network trip to the instance of SQL Server.


Columns based on the UserDefinedTableType object cannot be modified and this method generates an exception.

Applies to