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
窗口函数实现
select re.dept_no, re.emp_no, re.salary maxSalary from (select d.*,s.salary, dense_rank()over(partition by d.dept_no order by s.salary desc) rk from dept_emp d left join salaries s on d.emp_no = s.emp_no ) re where re.rk = 1 order by re.dept_no
