题解 | 考试分数(三)
考试分数(三)
https://www.nowcoder.com/practice/b83f8b0e7e934d95a56c24f047260d91
select g.id ,l.name,g.score
from
(
select * ,dense_rank()over(partition by language_id order by score desc )as rt
from grade
) as g join language as l on g.language_id=l.id
where g.rt =1 or g.rt=2
order by l.name asc , g.score desc , g.id asc
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