Product Pairs Within Price Range
Problem
**[Classic — asked at multiple companies]**
Find all **pairs of distinct products** whose price difference is strictly
less than **$50**.
Return `product_1`, `product_2`, and `price_diff`, ordered by product_1 then product_2. Each pair appears only once.
Tables
Example rows — the live problem includes the full dataset.
products
| product_id | product_name | price |
|---|
Expected output
Your answer should return 3 rows with the columns product_1, product_2, price_diff.
Starter code (SQL)
SELECT *
FROM products;Solve this SQL question free
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Solution & explanation
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