2020年7月20日
mysql记录去重
摘要： DELETE FROM ywgl_jiean202001 where id not in (select bid from (select min(id) as bid from ywgl_jiean202001 group by exam_num,app_num,tongji_month,jiea 阅读全文
posted @ 2020-07-20 22:24 一天从晚上开始 阅读(175) 评论(0) 推荐(0) 编辑