Can Berkeley DB open SQLite database files or automatically migrate them?
No, Berkeley DB does not include a complete copy of SQLite’s code, we’ve taken out the btree files. In particular, all of the code relating to manipulating files has been replaced by the Berkeley DB storage engine. You will need to migrate the schema and data using the sqlite3 command line interface to .dump and then the Berkeley DB dbsql command line to .load the data and schema from the dump file.