摘要: 双表SELECT A. * , B. *FROM memberdata A LEFT JOIN members B ON A.uid = B.uidWHERE 1LIMIT 0 , 30三表SELECT * FROM tx1 left join (tx2, tx3) ON (tx1.id=tx2.tid AND tx2.tid=tx3.tid) where tx1.id = 3 阅读全文
posted @ 2010-12-01 13:42 或与非 阅读(506) 评论(0) 推荐(0)