Sorry, that's what I meant: available on every server as a package. My brain isn't working today. I've set up a whole bunch of different servers for customers o

Sorry, that's what I meant: available on every server as a package. My brain isn't working today. I've set up a whole bunch of different servers for customers over the years, and as you say it's normally a single line to install mysql from a package manager. Some of the other databases may or may not be so easy to install. Anyway, the point I was making is that mysql is widely available and highly stable.