Leetcode：181. Employees Earning More Than Their Managers
The Employee table holds all employees including their managers. Every employee has an Id, and there is also a column for the manager Id.
+----+-------+--------+-----------+| Id | Name | Salary | ManagerId |+----+-------+--------+-----------+| 1 | Joe | 70000 | 3 || 2 | Henry | 80000 | 4 || 3 | Sam | 60000 | NULL || 4 | Max | 90000 | NULL |+----+-------+--------+-----------+Given the Employee table, write a SQL query that finds out employees who earn more than their managers. For the above table, Joe is the only employee who earns more than his manager.
+----------+| Employee |+----------+| Joe |+----------+0X02 题意
题目描述的挺清晰的。
0X03 题解
1.解法一（Cathy）
做一个join即可。
select a.Name as Employeefrom Employee as a join Employee as b on a.ManagerId = b.Idwhere a.Salary > b.Salary;2016-08-10 22:21:19 hzct
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