task: #577

README.md

@@ -38,6 +38,7 @@ Have a good contributing!
     - [182. Duplicate Emails](./leetcode/easy/182.%20Duplicate%20Emails.sql)
     - [183. Customers Who Never Order](./leetcode/easy/183.%20Customers%20Who%20Never%20Order.sql)
     - [511. Game Play Analysis 1](./leetcode/easy/511.%20Game%20Play%20Analysis%201.sql)
+    - [577. Employee Bonus](./leetcode/easy/577.%20Employee%20Bonus.sql)
     - [595. Big Countries](./leetcode/easy/595.%20Big%20Countries.sql)
 
 ## License

leetcode/easy/181. Employees Earning More Than Their Managers.sql

@@ -26,7 +26,7 @@ Return the result table in any order.
 
 SELECT t1.name AS Employee
 FROM Employee AS t1
-JOIN 
+LEFT JOIN 
     Employee AS t2
     ON t1.managerId = t2.id
 WHERE t1.salary > t2.salary

leetcode/easy/577. Employee Bonus.sql

@@ -0,0 +1,46 @@
+/*
+Question 577. Employee Bonus
+Link: https://leetcode.com/problems/employee-bonus/description/
+
+Table: Employee
+
++-------------+---------+
+| Column Name | Type    |
++-------------+---------+
+| empId       | int     |
+| name        | varchar |
+| supervisor  | int     |
+| salary      | int     |
++-------------+---------+
+empId is the column with unique values for this table.
+Each row of this table indicates the name and the ID 
+of an employee in addition to their salary and the id of their manager.
+
+
+Table: Bonus
+
++-------------+------+
+| Column Name | Type |
++-------------+------+
+| empId       | int  |
+| bonus       | int  |
++-------------+------+
+empId is the column of unique values for this table.
+empId is a foreign key (reference column) to empId from the Employee table.
+Each row of this table contains the id of an employee and their respective bonus.
+
+
+Write a solution to report the name and 
+bonus amount of each employee with a bonus less than 1000.
+
+Return the result table in any order.
+*/
+
+SELECT 
+    Employee.name, 
+    Bonus.bonus
+FROM Employee
+LEFT JOIN 
+    Bonus
+    ON Employee.empId = Bonus.empId
+WHERE Bonus.bonus < 1000 OR Bonus.bonus IS NULL