摘要: UPDATE t_comment SET pid=0 #SELECT * FROM t_comment #同时选择并且更新,MySQL需要中间表进行过滤 WHERE id IN( SELECT a.id FROM ( SELECT cb.id FROM t_comment AS cb GROUP B 阅读全文
posted @ 2016-08-09 22:50 Wcy100 阅读(302) 评论(0) 推荐(0) 编辑