The SQL demo has been on my "todo" list for months. It’s really hard to create a compelling demo for something as boring (by design) as SQL so this was a big procrastination target. After we built the SQL explorer tool for the developer guide it became apparent to me that this could be the basis for the new SQL demo, just provide the ability to type in arbitrary SQL and see it work…
However, this doesn’t provide enough as beginners might not grasp the full scope of the capabilities, so to make this interesting we added a special tutorial mode that just shows you the queries you can execute. I initially wanted to do something more elaborate like a walkthru tutorial but time constraints blocked that option.
One of the things we were able to achieve is to make the demo submittable to app stores and as a result it’s already on Google Play, Microsoft Store and on itunes.