I had hoped that my exhaustive guide on how sqlite works with my extension would be sufficient.
Could I first suggest that you read through this again so that you can understand the basic concepts?
In essence, if you IMPORT a database, you are simply bringing the data from one database into another (usually the default). You cannot write back to your chosen database, any changes will be made in your default database.
Your database appears to be in your assets (media folder) which means it is read only. It is not clear if you want to just read this data or to perform other CRUD operations? You therefore have a choice:
IMPORT to the SimpleSqlite.db and work on it from there
Once imported you can EXPORT your database to a writeable location (e.g. ASD), then LOAD that exported database to work on it
Copy your database from the assets to your ASD, which will then make it read/writable, then LOAD this copy to SQLite