this is an excellent question.
As it stands with KetaiSQLite Ketai v7 it is not designed for using existing SQLite databases, and only possible if you use Android’s SQLiteOpenHelper class http://developer.android.com/reference/android/database/sqlite/SQLiteOpenHelper.html to load the file and dump it into the KetaiSQLite object.
Because it’s a great point and useful to pre-populate a database with existing data, we’ll implement it in Ketai v8, which will be available for download in the first week of October. I’ll update the Beta book accordingly.
With v8, you’ll be able to put the SQLite database file into the sketch “data” folder and instantiate your KetaiSQLite object with that file name as parameter. It will then load your database. If that doesn’t exist, it will create one called ‘data’ as default.
Thanks for bringing this up.