Which of the following SQL statements correctly performs an INNER JOIN between the tables Sales and Clients using the column ClientID?

easy📝 Syntax Q3 of 15

SQL - INNER JOIN

Which of the following SQL statements correctly performs an INNER JOIN between the tables Sales and Clients using the column ClientID?

ASELECT * FROM Sales INNER JOIN Clients ON Sales.ClientID = Clients.ClientID;

BSELECT * FROM Sales JOIN Clients WHERE Sales.ClientID = Clients.ClientID;

CSELECT * FROM Sales INNER JOIN Clients USING ClientID;

DSELECT * FROM Sales INNER JOIN Clients ON Sales.ID = Clients.ClientID;

Step-by-Step Solution

Solution:

Step 1: Identify correct INNER JOIN syntax
The INNER JOIN syntax requires the ON keyword followed by the join condition.
Step 2: Match columns correctly
The join condition must compare the same column from both tables, here Sales.ClientID and Clients.ClientID.
Final Answer:
SELECT * FROM Sales INNER JOIN Clients ON Sales.ClientID = Clients.ClientID; -> Option A
Quick Check:
Correct INNER JOIN syntax with ON and matching columns [OK]

Quick Trick: Use ON with matching columns for INNER JOIN [OK]

Common Mistakes:

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