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182. Duplicate Emails

Easy


SQL Schema

Table: Person

+ +
+-------------+---------+
+| Column Name | Type    |
++-------------+---------+
+| id          | int     |
+| email       | varchar |
++-------------+---------+
+id is the primary key (column with unique values) for this table.
+Each row of this table contains an email. The emails will not contain uppercase letters.
+
+ +

 

+ +

Write a solution to report all the duplicate emails. Note that it's guaranteed that the email field is not NULL.

+ +

Return the result table in any order.

+ +

The result format is in the following example.

+ +

 

+

Example 1:

+ +
Input: 
+Person table:
++----+---------+
+| id | email   |
++----+---------+
+| 1  | a@b.com |
+| 2  | c@d.com |
+| 3  | a@b.com |
++----+---------+
+Output: 
++---------+
+| Email   |
++---------+
+| a@b.com |
++---------+
+Explanation: a@b.com is repeated two times.
+
+
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