SQL17 - 获取当前薪水第二多的员工的emp_no以及其对应的薪水salary

题目描述:

获取当前（to_date='9999-01-01'）薪水第二多的员工的emp_no以及其对应的薪水salary

CREATE TABLE `salaries` (
`emp_no` int(11) NOT NULL,
`salary` int(11) NOT NULL,
`from_date` date NOT NULL,
`to_date` date NOT NULL,
PRIMARY KEY (`emp_no`,`from_date`));

 

难易程度:

中等

 

解答:

用limit巧解

select emp_no,salary
from salaries
where to_date='9999-01-01'
and salary < (select max(salary) from salaries)
order by salary desc
limit 1