简介

联表查询, 相当于 inner join?
不是 因为不能用on

select a.id, a.number, count(distinct b.number) as t_rank
from passing_number as a, passing_number as b
where a.number<=b.number
group by a.id
order by a.number desc,a.id asc;

标签：count,题目,distinct,join,number,排名,passing,where,刷题
来源： https://www.cnblogs.com/eat-too-much/p/14959151.html