Solution:Step 1: Understand NATURAL JOIN behaviorIt joins on all columns with the same name automatically.Step 2: Identify cause of incorrect resultsIf multiple columns share names but are not intended join keys, the join will produce wrong matches.Final Answer:Employees and Departments share multip

[Solved] You wrote:SELECT * FROM Employees NATURAL JOIN Departments;But the result is incorrect. What is a likely cause? | SQL

SQL - Advanced Joins

You wrote:
SELECT * FROM Employees NATURAL JOIN Departments;
But the result is incorrect. What is a likely cause?

ADepartments table is empty

BEmployees and Departments share multiple columns with the same name not meant for joining

CNATURAL JOIN does not work with more than one common column

DYou forgot to specify ON clause

Step-by-Step Solution

Solution:

Step 1: Understand NATURAL JOIN behavior
It joins on all columns with the same name automatically.
Step 2: Identify cause of incorrect results
If multiple columns share names but are not intended join keys, the join will produce wrong matches.
Final Answer:
Employees and Departments share multiple columns with the same name not meant for joining -> Option B
Quick Check:
Multiple unintended join columns cause wrong NATURAL JOIN results [OK]

Quick Trick: Check all common columns before NATURAL JOIN [OK]

Common Mistakes:

MISTAKES

Assuming ON clause is needed with NATURAL JOIN
Believing NATURAL JOIN fails with multiple common columns
Ignoring empty tables as cause

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You wrote:

Step 1: Understand NATURAL JOIN behavior

Step 2: Identify cause of incorrect results

Final Answer:

Quick Check:

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