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New Monthly SQL Practice for January 2023!

Ready for our new SQL challenge? This time, we have prepared slightly more difficult SQL tasks. Here's the January SQL Practice course!

This SQL Practice is at an advanced level and is aimed at those who have finished our SQL Basics and Window Functions course or otherwise have the equivalent knowledge. If you do not feel comfortable working with SQL window functions yet, make sure to check out these courses first and then come back here for more practice.

Each month, offers a set of interactive SQL exercises for you to practice writing real SQL queries in real-life scenarios. Every Monthly SQL Practice features a different business or hobby. We’ve had practices that feature family trees, a language school, a book exchange, a job agency, rental cars, stars and astronomy, auto repair, baking, pizza, movies, U.S. cities, and more. And these aren’t just theoretical exercises; you can copy your SQL queries from the practice set, adapt them to your database, and use them in your own projects.

Our SQL practice features basic exercises on even-numbered months and advanced tasks on odd-numbered months. Each SQL practice course includes up to 10 interactive SQL exercises to help you improve your skills. The whole thing takes an hour or less to complete.

As a reminder, this month’s SQL Practice is at an advanced level. Remember to use the hints!

Practice your SQL skills and help the hotel owner grow her business! Start the January SQL Practice course now!

Have fun!