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Write a SQL query to find the top 3 selling products per region in the last month.

SQLmedium0.3 min readPremium
Frequency
Low
Asked at 1 company
Category
487
questions in SQL
Difficulty Split
130E|271M|86H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
Amazon
Key Concepts Tested
partitionsql
Expert AnswerPremium
56 wordsInterview-ready
SELECT * FROM (SELECT region, product_id, SUM(quantity) AS qty, ROW_NUMBER() OVER (PARTITION BY region ORDER BY SUM(quantity) DESC) AS rn FROM sales WHERE sale_date >= CURRENT_DATE - 30 GROUP BY region, product_id) WHERE rn <= 3. **Why**: Filter by date; group by region, product; rank; top 3....
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