Part of the utility of a database is that you can do updates to it, rather than regenerating it every time there's change. If your language changes, say from Spanish to Russian, then yes, you'd have to swap out the database. If you're working in one language, though, most of the words I would suspect stay the same, and you'll only be making additions and corrections over time.

I would suggest learning to leverage the advantages using databases gives you. Whether you stick with Berkeley or use something SQL-centered, you should be looking to do updates to the database instead of regenerating it on a regular basis.