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
https://www.nowcoder.com/practice/4a052e3e1df5435880d4353eb18a91c6
select dept_no,emp_no,salary from ( select a.emp_no , a.dept_no, b.salary, row_number() over(partition by a.dept_no order by b.salary DESC) rn from dept_emp a inner join salaries b on a.emp_no = b.emp_no ) as subquery where rn = 1
一个窗口函数应该是最简单的了吧