Normally, with the first start of the program a new database was created. In this all data can be stored. If you need, for some reasons another local database, you need this menu point. Also for switching to a database-server, this point must be used.

With "New" a new database will be created. For a local database also the file will be created. When using a database-server, only the tables, indexes and predefined values are created. With "Open", you select a local file or create a connection to the server.

The points "New" and "Open" are sub-menus of "Local database", "REAL Server" and "PostgreSQL".
If you use "xMoVe", an internal database will be used. Therefore this point is not available.