连表updade和连表delete

DELETE tmp FROM tmp  LEFT JOIN final_tbl  ON tmp.id =final_tbl.id WHERE tmp.id = final_tbl.id

  

update final_tbl, tmp set final_tbl.last_open_date=tmp.date where final_tbl.id=tmp.id;

  

posted @ 2013-04-27 09:30  qdqn  阅读(126)  评论(0编辑  收藏  举报