SQL Beginner Portfolio Project #6— Top 10 Customers by Revenue In this video, we’ll work through a medium SQL analytics project: finding the top 10 customers who contribute the most revenue. This is a classic real-world business problem and also a very common SQL interview question. What you’ll learn in this video: • Why businesses track customer revenue contribution • How to JOIN multiple tables (customers, orders, order details, products) • Using SUM() to calculate revenue from quantity × price • GROUP BY for customer-level aggregation • ORDER BY with LIMIT to rank the top 10 customers • How to present results for business insights and interviews This project is perfect for SQL beginners and data analysts who want to build their portfolio and prepare for interviews. Source Code & Dataset: I’ll keep updating it as new queries are added to the playlist. If you find this helpful, don’t forget to like, subscribe, and comment your thoughts below.