It sounds like you would say: "Why we need decentralized Hive cryptocurrency, we have fiat currency, and i'm happy with fiat, it works... " But, you need a bigger picture, like with fiat, you are bounded to the fed and country fiat currency, if you use it and all of the problems it comes with it. The same is with Microsoft database, one day, because, you are using it, and you (we) must accept the agreements on it (because we use it), Microsoft can change the way it works, or the way it injecting stuff on it, for example, tracing, etc. like it does with windows, and many other stuff. Windows is working too, if you just blindly use it, and have no interest on your privacy, but, you need to known how and what they do in background, and you change your mind soo quickly then, if you find out and known what you compromise from your privacy and freedom, just with use of Windows, you will sooo quick want to change to something like Linux.

The both other databases works great all the time with many projects, no problems with either.

I just don't understand @arcange why relaying on closed and bounded to Microsoft licences Microsoft SQL, and not on Open Source DB, like MySQL or Postgres, for a free and open Hive?