MSSQL Update Trigger Example

This tutorial shows how you would create a trigger in Microsoft SQL Server 2005/2008 that will date/timestamp a column named last_updated everytime any data in the row is updated.

This example assumes a primary key that includes 3 fields.

CREATE TRIGGER MyTableUpdate
ON dbo.MyTable
FOR update
AS
UPDATE
MyTable
SET last_updated = GetDate()
From MyTable Inner Join Inserted On
MyTable.KeyField1 = Inserted.KeyField1
and MyTable.KeyField2 = Inserted.KeyField2
and MyTable.KeyField3 = Inserted.KeyField3