Which of the following is the correct syntax for a NATURAL JOIN between tables employees and departments?

easy📝 Syntax Q12 of 15

PostgreSQL - Joins in PostgreSQL

Which of the following is the correct syntax for a NATURAL JOIN between tables employees and departments?

ASELECT * FROM employees NATURAL JOIN departments;

BSELECT * FROM employees JOIN departments ON employees.id = departments.id;

CSELECT * FROM employees CROSS JOIN departments;

DSELECT * FROM employees INNER JOIN departments USING (id);

Step-by-Step Solution

Solution:

Step 1: Identify NATURAL JOIN syntax
The correct syntax uses the keyword NATURAL JOIN directly between table names.
Step 2: Compare options
SELECT * FROM employees NATURAL JOIN departments; uses NATURAL JOIN correctly; others use different join types or explicit conditions.
Final Answer:
SELECT * FROM employees NATURAL JOIN departments; -> Option A
Quick Check:
Correct NATURAL JOIN syntax = SELECT * FROM employees NATURAL JOIN departments; [OK]

Quick Trick: NATURAL JOIN keyword goes directly between table names [OK]

Common Mistakes:

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