Intermediate SQL INNER JOIN Exercises

Intermediate-level SQL INNER JOIN practice exercises with solutions.

Exercise 1

Question: Join employees with their departments to show employee name and department name.

SELECT e.name AS employee_name, d.name AS department_name
FROM employees e
INNER JOIN departments d ON e.department_id = d.id;

INNER JOIN returns only rows that have matching values in both tables. Use table aliases (e, d) for cleaner code.

Exercise 2

Question: Find all orders with their customer names and product names.

SELECT c.name AS customer, p.name AS product, o.quantity
FROM orders o
INNER JOIN customers c ON o.customer_id = c.id
INNER JOIN products p ON o.product_id = p.id;

You can chain multiple JOINs to connect several tables. Each JOIN adds one more table to the result.