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New Monthly SQL Practice for May 2023!

Ready for our new SQL challenge? This time, we have prepared some slightly more difficult SQL tasks. Here’s the May 2023 SQL Practice course!

You’ll be helping Sophie, who is running an online document editing app. She would like to gather some data that will help her to expand the business. She hired you as an SQL specialist to help her out. Can you find the average number of documents created by each user? Are you able to calculate how much time on average a user spends on editing documents? The answers are hidden in the database – you just need to figure out how to get them out of the database using SQL functions.

This SQL Practice is at an advanced level. It’s aimed at those who have finished our Recursive Queries course or know how to use Common Table Expressions and recursive queries in SQL. If you don’t feel comfortable using recursive queries yet, make sure to check this course out 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 worked with data on 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 this 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 Sophie grow her business! Start May's SQL Practice course now!

Have fun!