EBK DATABASE CONCEPTS
EBK DATABASE CONCEPTS
7th Edition
ISBN: 9780133777840
Author: AUER
Publisher: VST
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Chapter 7, Problem 7.4RQ

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Trigger:

In a database, a trigger is a program joined to a particular table or view. It will executed by the DBMS (Database Management System), when certain events may occur using that table.

  • It can be executed before or after the “SQL” commands which use the “INSERT”, “UPDATE” or “DELETE” operations or once for each modified row.
  • If a trigger event has occurs, the trigger’s function will called at the time of handling the event...

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