发布网友 发布时间:2022-04-22 10:26
共3个回答
懂视网 时间:2022-04-09 11:18
* FROM table_score ORDER BY score DESC;
获取某个学生成绩排名并计算该学生和上一名学生成绩差,是并列排名
SELECT *, (SELECT count(DISTINCT score) FROM table_score AS b WHERE a.score<b.score)+1 AS rank, #获取排名,并列 (SELECT b.score FROM table_score AS b WHERE b.score>a.score ORDER BY b.score LIMIT 1)-a.score AS subtract #获取和上一名学生成绩的差
FROM table_score AS a WHERE a.s_id = 13; #获取学生周三的成绩排名和与上一名的成绩差
获取所有学生成绩排名-并列排名
SELECT *, (SELECT count(DISTINCT score) FROM table_score AS b WHERE a.score<b.score)+1 AS rank #获取排名-并列 FROM table_score AS a ORDER BY rank; #获取学生成绩排名
获取所有学生成绩排名,不是并列排名。计算行号进行排名
SELECT a.*, (@rowNum:=@rowNum+1) AS rank #计算行号FROM table_score AS a, (SELECT (@rowNum :=0) ) b ORDER BY a.score DESC;
mysql计算排名
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热心网友 时间:2022-04-09 08:26
select id,integral,addtime from cos_member_vip order by integral desc,addtime asc
热心网友 时间:2022-04-09 09:44
寄韩谏议(杜甫)