Can I delete database.sqlite?

Operating system

Windows

Joplin version

2.10.19

What issue do you have?

I'm in the process of exporting my notes to JEX files to backup them. Is it necessary to keep a copy of the database.sqlite as well?
I mean that I want to do a fresh install, by removing everything; the resources folder and the database, and then import the notes from the JEX files.
Would that work or should I also replace the empty database created during the fresh install with the copy of the backuped one?
And because the desktop app on Windows by default installs the resources folder and database on C: drive, how can I tell it to look at another drive, say D so I move them there?
Many thanks.