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.
1 # Write your MySQL query statement below 2 SELECT DISTINCT a.Email 3 FROM Person a, Person b 4 WHERE a.Email = b.Email AND a.Id != b.Id;
