42.删除重复的电子邮箱
题目内容:
代码及思路:
最近正在自学MYSQL,先写出一种解法,后面学完了,再用其他方法后续补上
DELETE FROM Person WHERE Id NOT IN
(SELECT Id FROM (SELECT MIN(Id) Id FROM Person GROUP BY Email) p);
42.删除重复的电子邮箱
题目内容:
代码及思路:
最近正在自学MYSQL,先写出一种解法,后面学完了,再用其他方法后续补上
DELETE FROM Person WHERE Id NOT IN
(SELECT Id FROM (SELECT MIN(Id) Id FROM Person GROUP BY Email) p);