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TRIGGER: UPDATE, DELETE or INSERT?


TRIGGER: UPDATE, DELETE or INSERT?

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Raymond van Laake
Raymond van Laake
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Hi,

I hope a simple question. When I create a trigger on update, insert and delete, is there a way to find out which of these events fired the trigger?

Here is some pseudocode:

CREATE TRIGGER justatest
ON testtable
FOR UPDATE, INSERT, DELETE
AS
BEGIN
IF @@update-fired-trigger = 1
INSERT INTO log 'a record was updated'
ELSE IF @@insert-fired-trigger = 1
INSERT INTO log 'a record was inserted'
ELSE IF @@delete-fired-trigger = 1
INSERT INTO log 'a record was deleted'
END



Thanks
GilaMonster
GilaMonster
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IF EXISTS (SELECT 1 FROM inserted) 
IF EXISTS (SELECT 1 FROM deleted)
PRINT 'Is Update'
ELSE
PRINT 'Is Insert'
ELSE
PRINT 'Is Delete'



Basically, if there are rows in both inserted and deleted, it's an update. If there are rows only in inserted, it's an insert. If there are rows only in deleted, it's a delete.

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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Raymond van Laake
Raymond van Laake
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Group: General Forum Members
Points: 407 Visits: 390
Thanks for your reply.... it's clear!

Ray
mpsathiskumar
mpsathiskumar
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