Tutorials: Many websites offer free SQL tutorials and exercises, such as SQLZoo and Mode Analytics. Source: over 1 year ago

Follow this tutorial. Sign up for a free account and follow along in the Mode report editor. Solve all the practice problems along the way. Source: over 1 year ago

If you are looking to practice your SQL skills, I like Mode to give you a good understanding of the basics as well as the advanced concepts. In this situation, I would simply learn to the test. Source: over 1 year ago

If youre learning SQL for the first time -> mode analytics is my favorite Especially for data analytics, great place to start and I recommend doing beginner and moderate levels. Source: over 1 year ago

I recommend this tutorial to all SQL beginners. My partner, who also had no background in programming, found this very helpful. Source: over 1 year ago

Oh I found it. It's learn-anything.xyz. Source: about 1 year ago

I think I found something that looks and works like what you described: https://learn-anything.xyz/. If it's not that one then I'd also like to know what it is because it sounds really useful haha. Source: over 1 year ago

This one is my favourite, its not great for everything but most of the time it provides a solid road map to learning something new. https://learn-anything.xyz/. - Source: Hacker News / over 1 year ago

Learn Anything : Community curated knowledge graph of best paths for learning anything. - Source: dev.to / over 1 year ago

You may be thinking of https://learn-anything.xyz/. - Source: Hacker News / over 1 year ago