# [196\. 删除重复的电子邮箱](https://leetcode-cn.com/problems/delete-duplicate-emails/)
![](https://box.kancloud.cn/13203d61115ba61ab69bf4b7c5a48673_638x420.png)
没有作感觉它好难,相通了才知道如此简单
```
DELETE
t1
FROM
Person as t1,
Person as t2
WHERE
t1.Email = t2.Email AND t1.Id > t2.Id
```