196. 删除重复的电子邮箱

196. 删除重复的电子邮箱

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题目链接：196. 删除重复的电子邮箱

代码如下：

# Write your MySQL query statement below
delete 
from Person as p
where p.id not in(select e.id from (select min(id) as idfrom Person group by email ) as e
)