182. Duplicate Emails

Write a SQL query to find all duplicate emails in a table named Person.

+----+---------+
| Id | Email   |
+----+---------+
| 1  | a@b.com |
| 2  | c@d.com |
| 3  | a@b.com |
+----+---------+

For example, your query should return the following for the above table:

+---------+
| Email   |
+---------+
| a@b.com |
+---------+

Note: All emails are in lowercase.

在一个名为Person的表中查找所有重复的电子邮件。

MySQL(1156ms):

 # Write your MySQL query statement below
 SELECT Email
 FROM Person
 GROUP BY Email
 HAVING COUNT(*) > 1 ;