mysql 去除表中重复的数据，保留id最小的数据信息
摘要：
-- 笨重方法 delete from tb_person WHERE id NOT IN ( select id from (SELECT min(id) id FROM tb_person GROUP BY email having count(1) > 1) tm) and email in 阅读全文
posted @ 2020-06-01 11:05 零度千里 阅读(374) 评论(0) 推荐(0) 编辑
