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Question: What is trigger in PL SQL

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User: mohit555 Post Date: 03 May 2011 05:38

Introduction:
What is trigger in PL SQL



Answer:
Trigger is a stored PL/SQL code block executed by an event which occurs to a database table.Like update event etc.There are 12 types of triggers in PL/SQL that consist of combinations of the BEFORE, AFTER, ROW, TABLE,   INSERT, UPDATE, DELETE etc.





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