MySQL Query : SELECT * FROM `lssdjtntdb`.`lssdjt_news` WHERE status=99 and catid=95 and (title REGEXP '唐朝' or title REGEXP '' or title REGEXP '白马驿之祸' or title REGEXP '白江口之战' or title REGEXP '怛罗斯之战' or title REGEXP '睢阳之战' or title REGEXP '唐朝统一战争' or title REGEXP '安史之乱' or title REGEXP '唐灭高丽之战') ORDER BY listorder DESC,id DESC LIMIT 9 MySQL Error : Got error 'empty (sub)expression' from regexp MySQL Errno : 1139 Message : Got error 'empty (sub)expression' from regexp Need Help?