
面试题碰到的,做出来看一下
SELECT MAX(SCORE) AS second,class FROM sl_student WHERE SCORE NOT IN
(SELECT MAX(SCORE) FROM sl_student group by class)GROUP BY class
本文针对一道SQL面试题进行解析,题目要求找出每个班级中除去最高分外的次高分数。通过对提供的SQL语句分析,帮助读者理解如何使用子查询、分组及条件排除等技巧来解决问题。

面试题碰到的,做出来看一下
SELECT MAX(SCORE) AS second,class FROM sl_student WHERE SCORE NOT IN
(SELECT MAX(SCORE) FROM sl_student group by class)
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