题解 | 获取每个部门中薪水最高的员工相关信息
获取每个部门中薪水最高的员工相关信息
https://www.nowcoder.com/practice/4a052e3e1df5435880d4353eb18a91c6
select dept_no ,emp_no ,salary from ( select dept_no ,s.emp_no ,salary ,row_number()over(partition by dept_no order by salary desc) as rk from dept_emp d left join salaries s on d.emp_no=s.emp_no ) a where rk=1 order by dept_no
