MySQL Query : SELECT COUNT(*) AS num FROM `dgmpscn`.`v9_rent` WHERE `status` = '99' AND `addrid` IN (-6_100) AND `shuxing` = '3370' and `catid`='81' AND `cityid` IN (0,289) LIMIT 1 MySQL Error : Unknown column '6_100' in 'WHERE' MySQL Errno : 1054 Message : Unknown column '6_100' in 'WHERE' Need Help?