what is instead of trigger in where u will use?

Answer Posted / sidharth

The primary advantage of INSTEAD OF triggers is that they
allow views that would not be updatable support updates. A
view comprising multiple base tables must use an INSTEAD OF
trigger to support inserts, updates and deletes that
reference data in the tables. Another advantage of INSTEAD
OF triggers is that they allow you to code logic that can
reject parts of a batch while allowing other parts of a
batch succeed.

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