题解 | #获取每个部门中当前员工薪水最高的相关信息#
获取每个部门中当前员工薪水最高的相关信息
http://www.nowcoder.com/practice/4a052e3e1df5435880d4353eb18a91c6
select a.dept_no,a.emp_no,a.salary
from
(
select d.dept_no,d.emp_no,s.salary,rank() over(PARTITION by d.dept_no order by s.salary desc) as s_rank
from dept_emp d
join salaries s on d.emp_no = s.emp_no
) as a
where a.s_rank = 1 ----用rank函数获取部门最高薪资
order by a.dept_no asc