[Solved] What will be the result of this query?SELECT Orders.id, Customers.name FROM Orders RIGHT JOIN Customers ON Orders.customer_id = Customers.id; | SQL

SQL - LEFT and RIGHT JOIN

What will be the result of this query?

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

AAll customers with their orders; NULL if no order exists.

BOnly orders that have customers.

CAll orders with matching customer names; NULL if no customer.

DOnly customers that have orders.

Step-by-Step Solution

Solution:

Step 1: Understand RIGHT JOIN behavior
RIGHT JOIN keeps all rows from the right table (Customers) and matches from the left table (Orders). Unmatched left columns are NULL.
Step 2: Analyze query output
Query returns all customers with their orders or NULL if no order exists.
Final Answer:
All customers with their orders; NULL if no order exists. -> Option A
Quick Check:
RIGHT JOIN output = C [OK]

Quick Trick: RIGHT JOIN keeps all right rows, unmatched left columns are NULL [OK]

Common Mistakes:

MISTAKES

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