E-commerce Database SQL Practice Exercises
Online retail system with products, customers, orders, and inventory
3 ExercisesBeginner to Advanced Level
Product Catalog Queries
Beginner01
Browse and filter products by category and price
Topics Covered:
SELECTWHERELIKE
Sample Query:
SELECT product_name, unit_price, category_id FROM products WHERE unit_price BETW...Sales Analysis
Intermediate02
Analyze orders and calculate revenue metrics
Topics Covered:
JOINSUMGROUP BY
Sample Query:
SELECT p.product_name, SUM(oi.quantity * oi.unit_price) as revenue FROM products...Customer Insights
Advanced03
Advanced customer behavior analysis and segmentation
Topics Covered:
Window FunctionsCTEsAdvanced JOINs
Sample Query:
WITH customer_stats AS (SELECT c.customer_id, c.company_name, COUNT(o.order_id) ...Ready for Free Practice?
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