The app downloads the database according to the user's status and inserts it into the database.
The app downloads the database according to the user's status and inserts it into the database.
You do not do that. The assets folder is for static resources, available during application building. You should save custom or dynamic data to the device rather than the APK.
Depending on what you intend to do, there are different preferred approaches. Take a look at the official guide to decide the best for your case.