Wednesday, May 19, 2010
What-Is-A-Trigger-In-The-Database?-What-Is-The-Use-Of-It?
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trigger consists of a group of sql statements which can be used to restrict to insert or update or delete data from a table. the syntax is trigger triggername on table name for insert or delete or updata as sql statements. when ever an trigger is raised it creates 2 tables internally they are clled magic tables
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