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Which SQL statement correctly performs a natural join between tables Orders and Customers?

easy📝 Syntax Q3 of 15
SQL - Advanced Joins
Which SQL statement correctly performs 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 (order_id);
DSELECT * FROM Orders CROSS JOIN Customers;
Step-by-Step Solution
Solution:
  1. Step 1: Recall NATURAL JOIN syntax

    The correct syntax is: SELECT ... FROM table1 NATURAL JOIN table2;
  2. Step 2: Compare options

    SELECT * FROM Orders NATURAL JOIN Customers; uses NATURAL JOIN correctly. Others use different join types or explicit conditions.
  3. Final Answer:

    SELECT * FROM Orders NATURAL JOIN Customers; -> Option A
  4. Quick Check:

    Correct NATURAL JOIN syntax = SELECT * FROM Orders NATURAL JOIN Customers; [OK]
Quick Trick: NATURAL JOIN syntax: FROM table1 NATURAL JOIN table2 [OK]
Common Mistakes:
MISTAKES
  • Using ON clause with NATURAL JOIN
  • Confusing NATURAL JOIN with CROSS JOIN
  • Using USING clause instead of NATURAL JOIN

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