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Re: limit number of rows using a trigger
Posted by: Darren White ()
Date: March 13, 2012 04:09AM

another issue is that my log grows once a second for 30 days so I end up with around 2.7 million rows so "COUNT(*)" may end up slow.

perhaps I could just use the time stamp like this?:

SELECT MIN (last_update) INTO @min FROM a_test;
IF NEW.last_update - @min >= 30 THEN
DELETE FROM a_test ORDER BY last_update LIMIT 1;

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Subject Views Written By Posted
limit number of rows using a trigger 2737 Darren White 03/13/2012 03:50AM
Re: limit number of rows using a trigger 1021 Darren White 03/13/2012 03:59AM
Re: limit number of rows using a trigger 808 Darren White 03/13/2012 04:09AM
Re: limit number of rows using a trigger 1119 Darren White 03/13/2012 04:11AM
Re: limit number of rows using a trigger 1012 irek kordirko 03/13/2012 11:50AM
Re: limit number of rows using a trigger 717 Darren White 03/14/2012 05:32AM
Re: limit number of rows using a trigger 1219 irek kordirko 03/14/2012 11:48AM


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