http://www.devarticles.com/c/a/SQL-Server/Using-Triggers-In-MS-SQL-Server/2/CREATE TRIGGER trig_updateAuthor
ON authors
FOR UPDATE
AS
DECLARE @oldName VARCHAR(100)
DECLARE @newName VARCHAR(100)
IF NOT UPDATE(au_fName) AND NOT UPDATE(au_lName)
BEGIN
RETURN
END
SELECT @oldName = (SELECT au_fName + ' ' + au_lName FROM Deleted)
SELECT @newName = (SELECT au_fName + ' ' + au_lName FROM Inserted)
PRINT 'Name changed from "' + @oldName + '" to "' + @newName + '"'