题解 | #查询每个公司查看过的投递用户数#
查询每个公司查看过的投递用户数
https://www.nowcoder.com/practice/3e40ce574a484b64b88781ac0b1340e8
select
company_id, sum(resume_if_checked) as cnt
from
deliver_record dr
left join
job_info ji
on dr.job_id = ji.job_id
group by ji.company_id
having cnt > 0
order by ji.company_id
分组和排序的顺序要注意