What does the INSTEAD OF trigger do?

Question Posted / renjusha

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What does the INSTEAD OF trigger do?..

Answer / vani

Instead of triggers are the procedures that execute in
place of Data Manipulation language (DML)statement on a
table.

for example, if i have INSTEAD-OF-UPDATE Trigger on
TableA,and i execute an update statement on that table,the
code in the INSTEAD-OF-TRIGGER will be executed instead of
the update statement that I executed.

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What does the INSTEAD OF trigger do?..

Answer / s.vanitha

The INSTEAD OF triggers execute instead
of the original data modification. INSTEAD OF trigger are
allowed for both tables and views.

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What does the INSTEAD OF trigger do?..

Answer / apparao akki

None of the above answers are correct..

The Main objective of INSTEAD OF TRIGGERS is.. To handling
the complexity of View.,i.e; to manipulating the
non-updateable views(the views that have created by many
tables with help of joins, Group by operators or set operator's)

if u need more .. contact on my mail:

apparao.akki@oracle.com

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