Which app is best for SQL practice?


Which app is best for SQL practice?

Structured Query Language (SQL) is a powerful tool used for managing and manipulating data in relational database systems. Whether you’re a seasoned database professional or a beginner looking to learn SQL, there are various apps available that can help you practice and sharpen your SQL skills. In this article, we will explore some of the best apps for SQL practice, examining their features, pros, and cons to help you make an informed choice.


SQLZoo is an excellent starting point for beginners who want to learn SQL from scratch. It offers interactive lessons and challenges that cover the basics of SQL, including SELECT statements, JOIN operations, and aggregate functions. One of the key advantages of SQLZoo is its simplicity and user-friendly interface, making it accessible to users of all levels.


Interactive and beginner-friendly.

Covers fundamental SQL concepts.

Offers a wide range of exercises.


Limited advanced topics.

Doesn’t provide real-world database access.


Codecademy is a popular online learning platform that offers a comprehensive SQL course. While not solely dedicated to SQL, it provides a holistic programming experience with interactive lessons and hands-on coding exercises. Codecademy’s SQL course covers both basic and advanced topics, making it suitable for learners of all levels.


Comprehensive SQL course.

Interactive coding exercises.

Progress tracking and quizzes.


Requires a subscription for full access.

Less focused exclusively on SQL.


SQLFiddle is a web-based SQL practice platform that allows users to write and run SQL code in a sandbox environment. It’s particularly useful for testing SQL queries and exploring different database engines such as MySQL, PostgreSQL, and SQL Server. SQLFiddle supports the creation of schema and tables for experimentation.


Supports multiple database engines.

Ideal for testing and experimenting.

No installation required.


Limited structured lessons.

Not suitable for beginners.


LeetCode is primarily known for its coding challenges related to algorithms and data structures, but it also offers a SQL section with a variety of SQL problems. This platform is particularly beneficial for those preparing for technical interviews, as it presents real-world SQL challenges that are commonly asked during interviews.


Real-world SQL challenges.

Helps with technical interview preparation.

Strong developer community.


Focuses on problem-solving, not structured learning.

Advanced topics may be challenging for beginners.


DBeaver is an open-source database management tool that is popular among database professionals. While it’s not a dedicated SQL learning platform, it provides a robust environment for writing and executing SQL queries. DBeaver supports various database systems, including PostgreSQL, MySQL, SQLite, and more.


Supports multiple database systems.

Full-fledged database management tool.

Ideal for professionals and students.


Not designed for structured SQL learning.

May be overwhelming for beginners.

Choosing the best app for SQL practice depends on your skill level, learning style, and goals. For beginners, SQLZoo and Codecademy offer structured courses with interactive exercises. If you’re preparing for technical interviews, LeetCode provides real-world challenges. SQLFiddle and DBeaver are excellent choices for those who want to experiment with SQL and work with different database systems. Ultimately, the best app for you will be the one that aligns with your learning objectives and preferences. Regardless of your choice, regular practice and hands-on experience are key to mastering SQL and becoming proficient in database management. So, pick the app that suits you best and start your SQL journey today!


SQLBolt is another excellent resource for beginners looking to learn SQL. It provides a series of interactive lessons that cover the basics of SQL, starting from the very fundamentals and gradually progressing to more advanced concepts. The platform is user-friendly and offers a hands-on learning experience.


Well-structured and beginner-friendly lessons.

Covers a wide range of SQL topics.

Practical examples and exercises.


May lack some of the advanced topics.

Limited database management features.


W3Schools is a popular web development resource that includes an extensive SQL tutorial. It offers a wealth of information on SQL, from basic queries to more complex operations. W3Schools provides both explanations and examples, making it suitable for self-paced learning.


Comprehensive SQL tutorial.

Rich in examples and explanations.

Free to access.


Less interactive compared to dedicated platforms.

Limited hands-on practice.


Hackerrank is a platform that offers coding challenges and competitions in various programming languages, including SQL. It provides a range of SQL challenges categorized by difficulty level, allowing users to practice their SQL skills in a competitive environment.


Real-world SQL challenges.

Competitive coding environment.

Wide range of difficulty levels.


Less structured for beginners.

Focuses on problem-solving.


Udemy is an online learning marketplace that offers a variety of SQL courses created by instructors from around the world. These courses cater to different skill levels and cover a wide range of SQL topics. Udemy provides video lectures, quizzes, and hands-on exercises.


Diverse selection of SQL courses.

Self-paced learning with lifetime access.

Quality courses from experienced instructors.


Costs vary based on courses.

Quality may vary depending on the instructor.

The choice of the best app for SQL practice ultimately depends on your learning style, goals, and prior experience. Beginners may find SQLZoo, Codecademy, SQLBolt, and W3Schools ideal for their structured and beginner-friendly lessons. If you’re preparing for technical interviews or want to solve real-world problems, LeetCode and Hackerrank are excellent options.

SQLFiddle and DBeaver are more suited for experimentation and practical experience with various database systems. Udemy provides a wide range of courses for learners at different levels, allowing you to pick the one that aligns with your specific needs.

In summary, the best app for SQL practice will be the one that matches your learning objectives and preferences. Remember that consistent practice and hands-on experience are key to mastering SQL, so choose the platform that suits you best and embark on your SQL learning journey today!