Which of the following is the correct syntax for performing a NATURAL JOIN between tables orders and customers?

easy📝 Syntax Q3 of 15

PostgreSQL - Joins in PostgreSQL

Which of the following is the correct syntax for performing a NATURAL JOIN between tables orders and customers?

ASELECT * FROM orders NATURAL JOIN customers;

BSELECT * FROM orders JOIN customers ON orders.id = customers.id;

CSELECT * FROM orders INNER JOIN customers USING (id);

DSELECT * FROM orders CROSS JOIN customers;

Step-by-Step Solution

Solution:

Step 1: Identify NATURAL JOIN syntax
The NATURAL JOIN keyword is used directly between two table names without ON or USING clauses.
Step 2: Match syntax to options
SELECT * FROM orders NATURAL JOIN customers; uses correct syntax: SELECT * FROM orders NATURAL JOIN customers;
Final Answer:
SELECT * FROM orders NATURAL JOIN customers; -> Option A
Quick Check:
NATURAL JOIN syntax = SELECT * FROM orders NATURAL JOIN customers; [OK]

Quick Trick: NATURAL JOIN needs no ON or USING clause [OK]

Common Mistakes:

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