题目链接:
解析:
这道题可以直接应用GROUP BY ... HAVING
结构求解。
关于这个结构的用法可以参考:
题解:
# Write your MySQL query statement below
SELECT Email FROM Person GROUP BY Email HAVING COUNT(*)>=2;
这道题可以直接应用GROUP BY ... HAVING
结构求解。
关于这个结构的用法可以参考:
# Write your MySQL query statement below
SELECT Email FROM Person GROUP BY Email HAVING COUNT(*)>=2;
本文标题:182. Duplicate Emails
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