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New Monthly SQL Practice for November 2021!

If you are a more advanced SQL user who is comfortable writing complex GROUP BY statements, you can check your knowledge with November’s SQL Practice. Every month on, you‘ll find a new challenge to solve.

Maybe this is the first time you’ve come across our Monthly SQL Practices. offers one free SQL Practice each month: basic levels on even-numbered months and advanced levels on odd-numbered months. Each SQL Practice takes about an hour (or less!) and contains 5–10 exercises to help you hone your skills.

Each 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.

In our November 2021 SQL Practice, you’ll meet Sarah, a manager of a running club. She needs your help to decide which running events the members of her club should participate in, what distances are most popular among the members, and how to build the training schedule.

Can you help her with the analysis by using your SQL powers? It shouldn’t be too hard if you have finished our SQL Basics, Creating Basic SQL Reports, and GROUP BY Extensions in SQL courses or if you understand the concepts we’ve covered there.

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