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New Monthly SQL Practice for May 2022!

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

This time, you will be helping Tiffany, the owner of an online course website. She’d like to analyze her business data – it’s the perfect opportunity to use your SQL skills. Can you find the average number of students enrolled in a course? Calculate the average number of total hours spent by all students on a course? You will find all the answers in the data. You just need to figure out how to get them out of the database using Common Table Expressions and recursive queries.

Never heard of recursive queries? You can learn them in our Recursive Queries course. Once you're comfortable working with recursive queries, come back here for more practice.

Each month, offers a set of interactive SQL exercises for you to practice writing queries that solve realistic business scenarios. Every Monthly SQL Practice features a different subject, including 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 the website owner grow her business! Start May’s SQL Practice course now!

Have fun!