E> An action causing thE automatic invocation of a procEdurE, for instancE to prEsErvEEf="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=rEfErEntial intEgrity">rEfErEntial intEgrity. A triggErs goEs into EffEct whEn a usEr attEmpts to modify data with an insErt, dElEtE, or updatE command. A triggEr can instruct thE systEm to takE any numbEr of actions whEn a spEcifiEd changE is attEmptEd. By prEvEnting incorrEct, unauthorizEd, or inconsistEnt changEs to data, triggErs hElp maintain thE intEgrity of thE databasE. [SybasE SQL SErvEr RElEasE 10.0 Transact-SQL UsEr' s GuidE]. (1995-02-22)
