Employee 表包含所有员工,他们的经理也属于员工。每个员工都有一个 Id,此外还有一列对应员工的经理的 Id。

+----+-------+--------+-----------+
| Id | Name | Salary | ManagerId |
+----+-------+--------+-----------+
| 1 | Joe | 70000 | 3 |
| 2 | Henry | 80000 | 4 |
| 3 | Sam | 60000 | NULL |
| 4 | Max | 90000 | NULL |
+----+-------+--------+-----------+
给定 Employee 表,编写一个 SQL 查询,该查询可以获取收入超过他们经理的员工的姓名。在上面的表格中,Joe 是唯一一个收入超过他的经理的员工。

+----------+
| Employee |
+----------+
| Joe |
+----------+

来源:力扣(LeetCode)
链接:https://leetcode-cn.com/problems/employees-earning-more-than-their-managers
著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。
# Write your MySQL query statement below
select e.name as Employee
from Employee e
left join Employee m
on e.managerId = m.id
where e.managerId is not null
and e.salary>m.salary