题解 | #今天的刷题量(一)#
今天的刷题量(一)
https://www.nowcoder.com/practice/e18f56796ae94c3d885e61c8d57a950e
select a.name, a.cnt from (select s.id, s.name, count(m.id) as cnt from subject s left join submission m on s.id=m.subject_id where m.create_time=current_date group by s.id, s.name) a order by a.cnt desc, a.id