Perfect! That was the last exercise in our quiz and you've done pretty well!

This is where our course ends. We've done quite a lot: single CTEs, multiple CTEs, nested CTEs, recursion, INSERT/UPDATE/DELETE with CTEs… pretty much everything you need in order to successfully use Common Table Expressions. We hope the knowledge you have gained will prove useful.

If you enjoyed the course, please leave us a rating and feel free to explore the other courses we offer! Next, you may want to consider our Window Functions course. You'll learn how to compute running totals and averages, build rankings, investigate trends over time, and much more. Thanks for studying with us!