You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order by ***_enewstags.num DESC limit 30' at line 1 select DISTINCT(***_enewstags.tagname),***_enewstags.tagid,***_enewstags.num from ***_enewstags inner join ***_enewstagsdata on ***_enewstags.tagid = ***_enewstagsdata.tagid where ***_enewstagsdata.classid = order by ***_enewstags.num DESC limit 30