摘要: mysql 删除重复数据,需要给子查询的表,起一个别名 delete from think_cmport_jpg_copy where id not in (SELECT a FROM (select MAX(id) as a from `think_cmport_jpg_copy` group b 阅读全文
posted @ 2016-08-05 16:08 dcj890828 阅读(339) 评论(0) 推荐(0) 编辑