题解 | 获取当前薪水第二多的员工||DENSE_RANK() 密集排名窗口函数
获取当前薪水第二多的员工的emp_no以及其对应的薪水salary
https://www.nowcoder.com/practice/8d2c290cc4e24403b98ca82ce45d04db
select
emp_no,
salary
from
(
select
emp_no,
salary,
dense_rank() over (
order by
salary DESC
) as rk_salary
from
salaries
) as t1
where
rk_salary = 2
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