LeetCode 176 Second Highest Salary mysql,select 嵌套难度:1

转载于 2015-08-26 07:58:00 发布 · 62 阅读

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原文链接：http://www.cnblogs.com/xuesu/p/4759206.html

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#数据库

本文提供了一个SQL查询示例，用于从Employee表中获取第二高的薪水。如果不存在第二高的薪水，则返回NULL。

https://leetcode.com/problems/second-highest-salary/

Write a SQL query to get the second highest salary from the Employee table.

+----+--------+
| Id | Salary |
+----+--------+
| 1  | 100    |
| 2  | 200    |
| 3  | 300    |
+----+--------+

For example, given the above Employee table, the second highest salary is 200. If there is no second highest salary, then the query should return null.

# Write your MySQL query statement below
select max(Salary) from Employee where Salary < (select max(Salary) from Employee);

转载于:https://www.cnblogs.com/xuesu/p/4759206.html

LeetCode 176 Second Highest Salary mysql,select 嵌套 难度:1

LeetCode 176 Second Highest Salary mysql,select 嵌套难度:1