题解 | 每个部门薪资排名前两名员工
每个部门薪资排名前两名员工
https://www.nowcoder.com/practice/89329eadd4a64126b1cd326ea0b7eff7
select department,employee_name,salary from (select department,employee_name,salary,rank() over(partition by department order by salary desc) as rk from employees) as rank_employ where rk<=2 order by department;