[LeetCode]Employees Earning More Than Their Managers,解題報告，leetcodeearning

[LeetCode]Employees Earning More Than Their Managers,解題報告，leetcodeearning
目錄

• 目錄
• 題目
• 思路
• AC SQL

題目

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

思路

題目是要從Employee表中找到員工的工資大於自己manager工資的員工姓名。

實現方案也是MYSQL的內聯，直接上AC SQL。

AC SQL

select e1.Name from Employee as e1 inner join Employee as e2 on e1.ManagerId = e2.Id and e1.Salary > e2.Salary;