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What is the usuage of an ON-INSERT,ON-DELETE and ON-UPDATE
TRIGGERS ?



What is the usuage of an ON-INSERT,ON-DELETE and ON-UPDATE TRIGGERS ?..

Answer / guest

These triggers are executes when inserting,deleting and
updating operations are performed and can be used to
change the default function of insert,delete or update
respectively.

For Eg, instead of inserting a row in a table an
existing row can be updated in the same table.

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