Hi! Could we please enable some services and cookies to improve your experience and our website?

Privacy & Cookie Policy.
SQL code copied to buffer

SQLtest.online

Practice

Lessons

Test

RU PT FR

Learn SQL Online with SQLTest.online

SQLTest.online is a free interactive SQL learning platform where you can practice SQL online, solve real database tasks, and improve your query-writing skills. If you want to learn SQL for work, study, or interview preparation, you can train with hands-on exercises and instant feedback.

Our motto: Master SQL — one query at a time.

How SQLTest Works

Our SQL question bank includes 396 practice tasks, from basic SELECT queries to advanced analytical SQL problems based on real-world scenarios. Exercises are organized by difficulty, topic, and database engine.

Each task contains automated tests that validate query results and task-specific conditions.

Getting Started with SQL Practice

📂

Choose an SQL challenge

Browse exercises by topic, difficulty, or database type.

✍️

Write your query

Use the built-in SQL editor to write your solution.

✅

Run, test, and improve

Get instant feedback and refine your query until all tests pass.

No Account Required

You can start solving SQL challenges immediately without creating an account. Signing in is optional, but it unlocks extra features such as saving progress, earning achievements, and viewing other users' solutions.

Benefits for Logged‑In Users

  • Save your progress and resume challenges anytime
  • Earn and display achievements as you learn
  • Track your personal learning history and performance stats
  • View and compare solutions from other users

Compare Solutions from Other Users

After you solve a challenge correctly, you can review solutions submitted by other users. Comparing approaches is one of the fastest ways to learn new SQL techniques and optimize query performance. (Available for logged‑in users.)

Achievements and Progress Tracking

Earn achievements as you complete tasks, master SQL topics, and improve query efficiency. Logged‑in users get persistent progress tracking to build a long-term record of SQL learning.

Take the SQL Skill Test

When you feel ready, take the SQL skill test to evaluate your knowledge with practical challenges. Your result is not an official certification, but it gives a useful benchmark of your SQL proficiency.

Quick SQL Learning Tips

  • Try multiple approaches — different SQL solutions can have very different performance characteristics.
  • Read task conditions carefully — some problems require a specific statement or result format.
  • Use estimated query cost (when available) to learn optimization, but focus on correctness first.

Community

Join the SQLTest learning community. All users are welcome to participate in our English-speaking chats on Telegram or WhatsApp to ask questions, share ideas, and improve your SQL skills together.

Support

If you need help, have feedback, or want to report an issue, email us at support@sqltest.online.

Start practicing