What is RIGHT JOIN in SQL? - SQL Tutorials - Demystifying join in SQL

Returns all records from the right table, and matched ones from the left.

Query -

SELECT Customers.name, Orders.order_amount
FROM Customers
RIGHT JOIN Orders
ON Customers.customer_id = Orders.customer_id;

Result and observation - 

name order_amount
Alice 250
Alice 125
Bob 300
NULL 400

Order 104 is shown even though the customer is missing.