题解 | #SQL类别高难度试卷得分的截断平均值#
SQL类别高难度试卷得分的截断平均值
https://www.nowcoder.com/practice/a690f76a718242fd80757115d305be45
SELECT i.tag, i.difficulty,
ROUND(
(SUM(r.score)-MAX(r.score)-MIN(r.score))/
(COUNT(r.score)-2)
,1) AS clip_avg_score
FROM exam_record AS r
LEFT JOIN examination_info AS i
ON r.exam_id=i.exam_id
GROUP BY i.tag, i.difficulty
HAVING i.tag='SQL' AND i.difficulty='hard'
;
投递点点互动等公司10个岗位
上次被挂了后我连简历都不刷了