SQL - INNER JOIN
Which of the following is the correct syntax for an INNER JOIN with two conditions on tables
Orders and Customers?Which of the following is the correct syntax for an INNER JOIN with two conditions on tables Orders and Customers?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Identify correct JOIN syntax
INNER JOIN requires ON keyword followed by conditions combined with AND for multiple matches.Step 2: Check each option's syntax
SELECT * FROM Orders INNER JOIN Customers ON Orders.CustomerID = Customers.ID AND Orders.Status = Customers.Status; correctly uses ON with two conditions joined by AND. SELECT * FROM Orders INNER JOIN Customers ON Orders.CustomerID = Customers.ID OR Orders.Status = Customers.Status; uses OR which is incorrect for multiple conditions requiring all true. SELECT * FROM Orders INNER JOIN Customers WHERE Orders.CustomerID = Customers.ID AND Orders.Status = Customers.Status; wrongly uses WHERE instead of ON. SELECT * FROM Orders JOIN Customers ON Orders.CustomerID = Customers.ID, Orders.Status = Customers.Status; has invalid syntax with comma.Final Answer:
SELECT * FROM Orders INNER JOIN Customers ON Orders.CustomerID = Customers.ID AND Orders.Status = Customers.Status; -> Option AQuick Check:
INNER JOIN + ON + AND = correct syntax [OK]
Quick Trick: Use ON with AND for multiple join conditions [OK]
Common Mistakes:
MISTAKES- Using OR instead of AND in ON clause
- Replacing ON with WHERE for join conditions
- Separating conditions with commas
Master "INNER JOIN" in SQL
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