Outside of what's been mentioned I'll add Progate. Source: over 1 year ago

The end of my sophomore year saw the beginning of the COVID-19 pandemic, which was a terrible time for most of us. As difficult as it may have been, it created a new set of remote work opportunities. One of the first ones I grabbed was my first internship as a Community Intern at Progate. Working with Progate has, till this day, been one of the most wholesome and fulfilling experiences that I have had on a... - Source: dev.to / over 2 years ago

We wanted to create a service to allow even complete beginners to learn without frustration so we started Progate. Many people want to start programming, but don’t know how or where to start. So they get stuck before they even begin. Our goal is to solve this problem by making the world’s best service for learning to code and delivering it to beginners all over the world. - Source: dev.to / over 2 years ago

Before making a large commitment, I'd try out programming, and see if it is something you enjoy and have an aptitude for. There's a large number of online resources for it. One easy way to get started is Progate, which offers interactive courses. I reviewed their introductory course and thought it was pretty well done. Source: almost 3 years ago

That being said, I would recommend you at least learn some basic programming on your own first, just to confirm it’s something you enjoy and have the aptitude for. Progate is one online option that has some free interactive courses, and from what I’ve seen of it looks decent at giving someone the sense if programming is for them. Source: about 3 years ago

Also, reducing your problem down to a minimal reproducible example, along with some sample data (and ideally a http://sqlfiddle.com/ or https://dbfiddle.uk/ link) will get you much better answers. Source: about 1 year ago

Http://dbfiddle.uk has an AdventureWorks test DB that you could use. Source: about 1 year ago

If you used https://dbfiddle.uk to create a table, load it up with a minimum set of representative rows, then created a minimal, yet representative "first query" and then mocked up what you want your "second query"'s output to look like based on the example data, it might be way easier to comprehend what you are talking about. Source: over 1 year ago

Put it in a fiddle, like dbfiddle.uk or sqlfiddle.com. Source: over 1 year ago

I don't mean to take anything away from this post - its quite amazing and I can't wait to play with it more - but wanted to mention that there are sites out there that I believe solve the training portion maybe a little bit better, at least if all you want is to train on SQL not DBA type actions. My favorite is https://dbfiddle.uk/ - the ability to link and fork a set of statements is extremely handy. - Source: Hacker News / over 1 year ago