[Solved] Why might a RIGHT JOIN be less commonly used than a LEFT JOIN in PostgreSQL? — Ans: Because LEFT JOIN is more intuitive as tables are written left to right | PostgreSQL

PostgreSQL - Joins in PostgreSQL

Why might a RIGHT JOIN be less commonly used than a LEFT JOIN in PostgreSQL?

ARIGHT JOIN is slower than LEFT JOIN in all cases

BBecause LEFT JOIN is more intuitive as tables are written left to right

CRIGHT JOIN does not support ON conditions

DRIGHT JOIN always returns fewer rows than LEFT JOIN

Step-by-Step Solution

Solution:

Step 1: Understand usage patterns
LEFT JOIN is more intuitive because the preserved table is written first (left), matching natural reading order.
Step 2: Evaluate other options
RIGHT JOIN is not slower by default, supports ON conditions, and does not always return fewer rows.
Final Answer:
LEFT JOIN is preferred for readability and intuition. -> Option B
Quick Check:
LEFT JOIN preferred for readability, not performance [OK]

Quick Trick: LEFT JOIN preferred for readability; RIGHT JOIN same but reversed [OK]

Common Mistakes:

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Why might a RIGHT JOIN be less commonly used than a LEFT JOIN in PostgreSQL?