Query Error: SELECT i.itemid,i.cid,i.subject,i.author,i.postdate,b.content,b.tags FROM bg_items i LEFT JOIN bg_team b USING(itemid) WHERE i.ifcheck='1' AND i.ifhide='0' and i.stated=1 AND i.uid='9412' AND i.type='team' ORDER BY i.postdate DESC LIMIT 20 The URL Is: http://blog.ichinaceo.com/rss.php?uid=9412&type=team MySQL Server Error: Unknown column 'itemid' in 'from clause' ( 1054 ) You Can Get Help In: http://www.phpwind.net