[SQL] [LeetCode] Challenge log 182

Posted on | Edited on |
182. Duplicate Emails

https://leetcode.com/problems/duplicate-emails/description/

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

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+----+---------+
| 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:

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

Note: All emails are in lowercase.

Solution:
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Select Email
From Person 
Group by Email
Having Count(*) > 1
0%