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Is there a way to do the math in a DELETE statement (All 1 step; See my =
"sample" below pseudo code below). I am trying to delete the record if =
it is more than 3 hours old and the value of "approved" is still 0.

DELETE FROM `guest_book` WHERE `guest_book`.`date_submitted` + 3 hours =
=3D< '$current_time' AND `guest_book`.`approved` =3D '0' LIMIT 1
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On Aug 16, 2009, at 12:23 AM, "Ron Piggott"
<ron.php [at] actsministries.org> wrote:

> Is there a way to do the math in a DELETE statement (All 1 step; See
> my "sample" below pseudo code below). I am trying to delete the
> record if it is more than 3 hours old and the value of "approved" is
> still 0.
>
> DELETE FROM `guest_book` WHERE `guest_book`.`date_submitted` + 3
> hours =< '$current_time' AND `guest_book`.`approved` = '0' LIMIT 1

Check out the timediff function in mysql's SQL

http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functio ns.html#function_timediff

Bastien

Sent from my iPod

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