[Solved] Which of the following is the correct syntax to join tables users and orders on user_id? — Ans: SELECT * FROM users JOIN orders ON users.user_id = orders.user_id; | SQL

SQL - Advanced Joins

Which of the following is the correct syntax to join tables users and orders on user_id?

ASELECT * FROM users JOIN orders WHERE users.user_id = orders.user_id;

BSELECT * FROM users JOIN orders ON users.user_id = orders.user_id;

CSELECT * FROM users, orders ON users.user_id = orders.user_id;

DSELECT * FROM users JOIN orders USING user_id;

Step-by-Step Solution

Solution:

Step 1: Review JOIN syntax
The correct syntax uses JOIN ... ON to specify join condition explicitly.
Step 2: Identify correct option
SELECT * FROM users JOIN orders ON users.user_id = orders.user_id; uses JOIN with ON clause correctly; SELECT * FROM users JOIN orders USING (user_id); uses USING with parentheses.
Final Answer:
SELECT * FROM users JOIN orders ON users.user_id = orders.user_id; -> Option B
Quick Check:
Correct JOIN syntax uses ON [OK]

Quick Trick: Use JOIN ... ON for explicit join conditions [OK]

Common Mistakes:

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Which of the following is the correct syntax to join tables users and orders on user_id?