> SELECT storage_path, image_md5, id > FROM images > JOIN (SELECT CEIL(RAND() * (SELECT MAX(id) FROM images WHERE approved = > 1)) AS id) AS r2 USING (id) > WHERE approved = 1; > > I really do not get this, SELECT CEIL(RAND() will always return 1 will it > not? Any idea why I get an empty result set at times?
http://dev.mysql.com/doc/refman/5.0/en/mathematical-functions.html#function_rand So CEIL(RAND() ) would always be 1. My guess is you have is that you have hole(s) in your data set. For the record you are not doing CEIL(RAND() ), your doing CEIL(RAND() * (SELECT MAX(id) FROM images WHERE approved => 1)) -- Rob Wultsch [EMAIL PROTECTED] wultsch (aim) -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
