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Master SQL with our comprehensive free platform featuring 60+ interactive exercises across HR, E-commerce, and School database schemas. Practice SQL queries online with real-time execution, instant validation, and detailed solutions. No registration or setup required - start practicing SQL immediately in your browser.
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Our comprehensive curriculum covers: Basic SELECT statements, WHERE clauses and filtering, ORDER BY and LIMIT, Aggregate functions (COUNT, SUM, AVG, MIN, MAX), GROUP BY and HAVING clauses, INNER and OUTER JOINs, Subqueries and nested queries, Window functions and analytics, Common Table Expressions (CTEs), Date and string functions, CASE statements and conditional logic, UNION operations, EXISTS and IN operators, Database relationships and foreign keys.
Start practicing SQL immediately with our browser-based platform. No downloads, no setup, no registration - just pure SQL learning. Access 60+ interactive exercises covering everything from basic SELECT statements to advanced window functions.
Perfect for SQL beginners! Start with fundamental concepts including SELECT statements, WHERE clauses, ORDER BY, and basic filtering. Our beginner exercises include helpful hints and initial query templates to guide your learning.
Advance your skills with JOINs, aggregate functions, GROUP BY, HAVING clauses, and subqueries. Practice with realistic business scenarios using our HR, E-commerce, and School database schemas.
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Practice with employee data, departments, jobs, and salary information. Perfect for learning JOINs, hierarchical queries, and employee-manager relationships. Covers topics commonly asked in business intelligence and HR analytics interviews.
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