2020年10月11日
删除重复记录，只留一条
摘要： delete OrderListfrom OrderList as aaleft join ( select min(id) as id from OrderList group by order_sn ) as bbon aa.id = bb.idwhere (Owner_id = 2336175 阅读全文
posted @ 2020-10-11 13:15 石衣_2014 阅读(76) 评论(0) 推荐(0) 编辑