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 q1 where rk<3
