Thank you for your response. I have asked a couple of more specific questions (one of which you have already responded to). 

I am not an experienced database programmer, but rather a long-time spreadsheet user who recently discovered the wonder of databases and how much easier it can be to get the answers you want from a database rather than a spreadsheet. 

I have mostly been using the LibreOffice Base's embedded HSQLDB. I barely know any SQL at all, to be honest. I mostly use the GUI. 

My reason for attempting to use Firebird is that LO is transitioning to an embedded Firebird database, which is still, as I understand, fairly buggy. A knowledgable person on their forum suggested I try the Firebird 3 Server. And here I am.

All I really want to do with Firebird is to do whatever setup is important (e.g. changing the sysdba password), and then create some new databases with Firebird and connect them with one of the drivers to LO. I plan on, hopefully, using LO for my actual database setup and use beyond the simple creation stage.