delete p1 from Person as p1,Person as p2 where p1.Email = p2.Email and p1.Id > p2.Id;
作者:spike
分类: Mysql
创作时间:2023-06-25
更新时间:2024-12-09
SQL删除重复邮箱
删除Person表中重复的电子邮件记录,保留ID最小的记录。