牛客SQL2 查找入职员工时间排名倒数第三的员工所有信息 详细解读

题目：入门级

代码：

方法一：

select *
from employees
order by hire_date desc
limit 2,1

方法二：

select * 
from employees
where hire_date =(
select distinct hire_date 
from employees
order by hire_date desc
limit 1 offset 2)

方法三：使用开窗函数

select emp_no,birth_date,first_name,last_name,gender,hire_date
from (
select *,rank() over(order by hire_date desc) as a
from employees
) t 
where t.a=3