[tcard]

While that would probably be very valuable, it will probably come with lots of implementation details that won't really matter to you unless you plan to write a database yourself.

I'd suggest this one: https://dataintensive.net/ Its intended for _users_ of databases, that is, developers incorporating databases (and other kinds of data systems) into their applications. It gives just enough explanation on how those systems work and what they can (and can't) provide, and also gives a more general overview of what's available beyond relational SQL databases.