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
) a
WHERE a.rk<=2;
