[Solved] Find the error in this SQL query:SELECT * FROM Sales INNER JOIN Customers ON Sales.CustomerID = Customers.ID, Customers.Region = 'North'; | SQL

SQL - INNER JOIN

Find the error in this SQL query:

SELECT * FROM Sales INNER JOIN Customers ON Sales.CustomerID = Customers.ID, Customers.Region = 'North';

AUsing a comma instead of AND to combine join conditions in the ON clause

BMissing WHERE clause for filtering Customers.Region

CIncorrect table aliasing for Sales and Customers

DUsing INNER JOIN instead of LEFT JOIN

Step-by-Step Solution

Solution:

Step 1: Understand JOIN condition syntax
Multiple conditions in ON must be combined with AND, not commas.
Step 2: Analyze the query
The query uses a comma between conditions inside ON, which is invalid syntax.
Final Answer:
Using a comma instead of AND to combine join conditions in the ON clause -> Option A
Quick Check:
Multiple ON conditions require AND, not commas [OK]

Quick Trick: Combine ON conditions with AND, not commas [OK]

Common Mistakes:

MISTAKES

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