【SQL】182. Duplicate Emails
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 | +----+---------+
1 # Write your MySQL query statement below 2 select Email 3 from Person 4 group by Email 5 having count(*)>1;