>>>> 2012/03/16 13:30 -0400, Simon Wilkinson >>>> My query for this is as follows: select * from table where table.date1 - table.date2 between 28425600 and 29030400; <<<<<<<< I would not count on that subtraction s yielding a meaningful number: the types are not Unix timestamps. I would use TIMESTAMPDIFF, with a good unit.
From the downloaded help file: >>>> Date arithmetic also can be performed using INTERVAL together with the <file:///C:/Program%20Files/MySQL/MySQL%20Server%205.1/HELP/functions.html#operator_plus>+ or <file:///C:/Program%20Files/MySQL/MySQL%20Server%205.1/HELP/functions.html#operator_minus>- operator: date + INTERVAL expr unit date - INTERVAL expr unit <<<< but subtracting timestamp from timestamp hoping for a while (interval) is not mentioned. If you want the subtraction to work, make them big integers and use UNIX_TIMESTAMP and FROM_UNIXTIME. See http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql
