Master SQL Skills with Real-World Data Practice

Skip the theory. Practice SQL queries on realistic datasets from e-commerce, HR, and analytics. No downloads, no setup - start coding SQL in 30 seconds and land your next data role.

Instant Setup
Real Datasets
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ecommerce_orders.sql
1-- Top selling products by revenue
2SELECT p.product_name,
3 SUM(o.quantity * o.price) AS revenue
4FROM products p
5JOIN orders o ON p.id = o.product_id
6GROUP BY p.product_name
7ORDER BY revenue DESC
8LIMIT 10;

Stop Learning SQL with Toy Examples

Traditional SQL Courses

  • Practice with unrealistic “employee” tables
  • Spend hours setting up databases
  • Learn syntax but not real-world application
  • No feedback on query performance

SQLSandboxes Approach

  • Practice with real e-commerce, HR, analytics data
  • Start coding SQL in 30 seconds - zero setup
  • Learn patterns used by top data companies
  • Get instant feedback and optimization tips

Everything You Need to Master SQL

Interview-Ready Practice

Practice SQL problems similar to those asked at Google, Amazon, and Microsoft. Prepare for data analyst and engineer interviews with confidence.

Real Business Datasets

Work with authentic e-commerce orders, user analytics, financial transactions, and HR data - not simplified academic examples.

Instant Query Execution

Run complex JOIN operations, window functions, and CTEs instantly. No waiting, no database setup - just pure SQL practice.

Progressive Skill Building

Start with SELECT basics and advance to complex analytics. Our learning path guides you from beginner to SQL expert.

Query Optimization Tips

Learn to write efficient SQL with performance insights and best practices used by senior data engineers.

Track Your Progress

Monitor your SQL skill development with detailed analytics on query complexity and accuracy over time.

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Advance your career with hands-on SQL practice using real-world datasets. It’s completely free to start.

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