If there is a database with the same name in derby.system.home, an error will occur and the existing database will be left intact. If there is not an existing database with the same name in the current derby.system.home location, the whole database is copied from the backup location to the derby.system.home location and started.
The log files are copied to the default location. The
For more information about using this attribute, see "Creating a database
from a backup copy" in the
Do not combine this attribute with rollForwardRecoveryFrom, restoreFrom, or create.