Review and consolidate your SQL skills with tons of interactive exercises! In this learning path, you’ll practice SQL JOINs, aggregation with GROUP BY and HAVING, and subqueries (including correlated subqueries).Start learning
20 free interactive coding challenges
If you know the basics of SQL and want to keep your coding skills up-to-date, this learning path is for you. These SQL skills can be used with PostgreSQL, MySQL, Oracle, SQL Server, and SQLite database engines. Scroll down for details.
SQL is the most universal database language. Despite the recent explosion of NoSQL, SQL is becoming the preferred interface for data analysis. Whether you’re a student, a business professional, or an SQL enthusiast who’s simply eager to sharpen your skills, there’s always room for improvement.
The SQL Practice path will test your basic SQL knowledge and show you where you need to improve. With plenty of real-world examples and challenging exercises, you’ll brush up your SQL coding skills before you know it. Preparing for an interview? Completing this learning path will help you nail it!
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Review and deepen your knowledge of SQL JOINs with 93 exercises. Practice common and less common ways of getting data from multiple tables.
Refine your SQL skills with 88 interactive exercises, ranging from simple tasks with SELECT FROM statements to more advanced problems involving multiple subqueries.