题解 | #刷题通过的题目排名#
刷题通过的题目排名
http://www.nowcoder.com/practice/cd2e10a588dc4c1db0407d0bf63394f3
窗口函数
1 1 1
2 2 2
2 2 3
4 3 4
rank dense_rank row_number
select *, dense_rank() over(order by number desc) as t_rank from passing_number