SQL Basics: Simple JOIN and RANK

*	*
链接	SQL Basics: Simple JOIN and RANK
难度	6kyu
状态	√
日期	2019-03-27

题意

题解1

select rank() over (order by count(sales.sale)) as sale_rank ,people.id, people.name, 
count(sales.sale) as sale_count
from people 
left join sales
on people.id = sales.people_id
group by people.id