Create 0181-employees-earning-more-than-their-managers.sql

Author: sanajitjana

Easy/0181-employees-earning-more-than-their-managers.sql

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+-- LeetCode Problem: 181. Employees Earning More Than Their Managers
+-- https://leetcode.com/problems/employees-earning-more-than-their-managers/
+--
+-- Description:
+-- The Employee table holds all employees including their managers.
+-- Every employee has an Id, and there is also a column for the manager Id.
+-- Return the list of employees who earn more than their managers.
+--
+-- Employee table schema:
+-- +----+-------+--------+-----------+
+-- | Id | Name  | Salary | ManagerId |
+-- +----+-------+--------+-----------+
+--
+-- Example:
+-- Input:
+-- Employee table:
+-- +----+-------+--------+-----------+
+-- | Id | Name  | Salary | ManagerId |
+-- +----+-------+--------+-----------+
+-- | 1  | Joe   | 70000  | 3         |
+-- | 2  | Henry | 80000  | 4         |
+-- | 3  | Sam   | 60000  | NULL      |
+-- | 4  | Max   | 90000  | NULL      |
+-- Output:
+-- +----------+
+-- | Employee |
+-- +----------+
+-- | Joe      |
+-- +----------+
+
+-- Solution:
+SELECT e.name AS Employee
+FROM Employee e
+JOIN Employee m ON e.managerId = m.id
+WHERE e.salary > m.salary;