Which of the following is the correct syntax for an INNER JOIN with an ON condition between tables Employees and Departments on DepartmentID?

easy📝 Syntax Q12 of 15

SQL - INNER JOIN

Which of the following is the correct syntax for an INNER JOIN with an ON condition between tables Employees and Departments on DepartmentID?

ASELECT * FROM Employees INNER JOIN Departments ON Employees.DepartmentID = Departments.DepartmentID;

BSELECT * FROM Employees INNER JOIN Departments ON Employees.ID = Departments.ID;

CSELECT * FROM Employees JOIN Departments USING DepartmentID;

DSELECT * FROM Employees INNER JOIN Departments WHERE Employees.DepartmentID = Departments.DepartmentID;

Step-by-Step Solution

Solution:

Step 1: Identify correct INNER JOIN syntax
The INNER JOIN requires the ON keyword followed by the join condition.
Step 2: Check the join condition correctness
The join should be on Employees.DepartmentID = Departments.DepartmentID, not just ID or WHERE clause.
Final Answer:
SELECT * FROM Employees INNER JOIN Departments ON Employees.DepartmentID = Departments.DepartmentID; -> Option A
Quick Check:
INNER JOIN uses ON with condition [OK]

Quick Trick: Use ON keyword with join condition for INNER JOIN [OK]

Common Mistakes:

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