如何获得每个部门2名员工的最高工资

Question

如何获得与员工相关的每个部门的2名员工的最高薪水？

Answer 1

像这样的东西

select * from (
select employee_id,row_number() over (partition by department 
  order by salary desc) as rno 
 from employee
) t
where rno<=2