mysql trigger delete problem

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Hi,
I had a limited database in my server, for that reason in every 6 months i need to delete old datas,
My table name is SystemEvents and i had a column ReceivedAt it stores date like "2013-01-16 13:00:01"

SQL

Create Trigger deleteData  After Delete On 'SystemEvents'
For EACH ROW
BEGIN
DELETE FROM SystemEvents
WHERE(ReceivedAt // !!!!!!!!
END

WHERE(ReceivedAt // !!!!!!!! what shoul i write here to delete the data which are older than 5 months)
Also it is the first time that i am writing a mysql trigger please check my syntax.

Posted 23-Jan-13 21:43pm

egultekinoglu

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Sudhakar Shinde · Answer 1 · 2013-03-17T21:38:00

Solution 1

Cursor will be as follows..

SQL

CREATE TRIGGER deleteData  AFTER DELETE ON SystemEvents
For EACH ROW
BEGIN
	DELETE FROM SystemEvents
	WHERE ReceivedAt < DATE_SUB(NOW(), INTERVAL 5 MONTH)
END

Posted 17-Mar-13 21:38pm

Sudhakar Shinde