Top Websites to Practice SQL Online in 2025

Structured Query Language (SQL) is an essential skill for database management, data analysis, and backend development. Whether you are a beginner or an experienced developer, practicing SQL online can enhance your understanding and efficiency. Several platforms offer interactive exercises, real-world scenarios, and challenges to help you sharpen your SQL skills. Below is a detailed list of some of the best websites where you can practice SQL online effectively.

01. SQLZoo

SQLZoo is a popular platform that provides interactive SQL tutorials with step-by-step guidance. It covers fundamental to advanced SQL topics with live coding exercises.

Interactive coding environment with instant feedback.
Progressive lessons covering SELECT, JOINs, subqueries, and more.
Real database execution to validate SQL queries.

Website: SQLZoo - Interactive SQL Tutorial

02. LeetCode (SQL Section)

LeetCode is widely known for competitive programming and coding interview preparation. It also has a dedicated SQL section that contains hundreds of SQL challenges.

SQL questions frequently asked in top tech companies.
Hands-on SQL query execution with different database engines.
Difficulty levels range from easy to hard.

Website: LeetCode - SQL Problems

03. Mode Analytics SQL Tutorial

Mode Analytics provides a free, interactive SQL tutorial for beginners and data analysts. It allows users to practice SQL queries in a real-world data environment.

Practical case studies with business-related datasets.
Interactive lessons with query execution.
Strong focus on data analysis and visualization.

Website: Mode - SQL Tutorial

04. W3Schools SQL Try-It Editor

W3Schools offers a simple yet effective SQL tutorial with a "Try-It" editor, allowing users to write and execute SQL queries on sample databases.

Beginner-friendly SQL tutorials.
Live SQL execution on an online database.
Step-by-step guidance for writing SQL queries.

Website: W3Schools - SQL Tutorial

05. HackerRank (SQL Domain)

HackerRank is an excellent platform for practicing SQL coding challenges ranging from basic queries to advanced optimizations.

SQL problems categorized by difficulty level.
Timed challenges to enhance SQL problem-solving skills.
Community leaderboard and discussions.

Website: HackerRank - SQL Challenges

06. DataLemur

DataLemur provides SQL interview questions and exercises that simulate real-world scenarios, helping users prepare for data science roles.

SQL problems based on FAANG and top tech company interviews.
Live query execution with instant results.
Step-by-step hints and solutions.

Website: DataLemur

07. StrataScratch

StrataScratch is designed for data science and SQL interview preparation, featuring real-world SQL problems from major tech companies.

Over 1,000 SQL questions from actual interviews.
Real business datasets for hands-on experience.
SQL solutions and discussions with explanations.

Website: StrataScratch

08. Codecademy SQL Course

Codecademy offers an interactive SQL course that teaches essential database concepts and practical query writing.

Comprehensive SQL curriculum for beginners.
Interactive exercises with real-time execution.
Hands-on projects to apply SQL concepts.

Website: Codecademy - Learn SQL

09. Kaggle SQL Exercises

Kaggle provides SQL notebooks and exercises to practice querying large datasets in a data science-focused environment.

Interactive SQL notebooks with real datasets.
Hands-on data analysis projects.
Integration with Python and machine learning tools.

Website: Kaggle - Intro to SQL

10. GeeksforGeeks SQL Practice

GeeksforGeeks offers SQL exercises and tutorials covering theoretical concepts along with practical challenges.

SQL tutorials covering all database concepts.
Multiple-choice questions and coding exercises.
Practice problems categorized by difficulty.

Website: GeeksforGeeks SQL Tutorial

Conclusion

Practicing SQL online is a great way to improve database querying skills and prepare for technical interviews. Whether you prefer structured lessons, hands-on exercises, or competitive coding challenges, the platforms listed above offer excellent resources to refine your SQL expertise. Choose the one that fits your learning style and start coding today!