https://leetcode.com/problems/duplicate-emails/
Write a SQL query to find all duplicate emails in a table named Person.
+----+---------+ | Id | Email | +----+---------+ | 1 | [email protected] | | 2 | [email protected] | | 3 | [email protected] | +----+---------+
For example, your query should return the following for the above table:
+---------+ | Email | +---------+ | [email protected] | +---------+
Note: All emails are in lowercase.
代码：
# Write your MySQL query statement below SELECT Email FROM Person GROUP BY Email HAVING COUNT(Email) > 1
FH 是猪