摘要: //查出所有的content唯一的最小idcreate table tmp as select min(id) as col1 from test group by content;//删除重复数据delete from test where id not in (select col1 from ... 阅读全文
posted @ 2015-04-23 15:30 wangjinming 阅读(313) 评论(0) 推荐(0) 编辑