Adding own SQLite database at the end of already existing

Good day, i made my own SQLite Android database and used it with the help of Android-sqlite-asset-helper lib (Android SQLite Helper lib). Now i want to upgrade it, but not to delete and put another. I want to put another own SQLite database with the same fields but diff data at the end of existing database. The lib allows only delete your old dbase and create new. Thanks for your help!