目录
题目概述
解题思路
方式一
方式二
力扣官方解析
代码实现
方式一
select ifnull((
select max(salary) from Employee
where
salary < (select max(salary) from Employee)),null)
as SecondHighestSalary;
输出与预期结果一致，答题成功！
方式二
limit
select
ifnull(
(select distinct Salary
from Employee
order by Salary desc
limit 1,1),
null) as SecondHighestSalary;
输出与预期结果一致，答题成功！
limit offset
SELECT
IFNULL(
(SELECT DISTINCT Salary
FROM Employee
ORDER BY Salary DESC
LIMIT 1 OFFSET 1),
NULL) AS SecondHighestSalary
输出与预期结果一致，答题成功！
