During a set of incremental restores, RESTORE creates and drops dbspaces as needed to match what was done during the period of operation encompassed by the restores. For example, assume that you make a full backup of a database, then add a dbspace to that database, and then do an incremental backup after adding the dbspace. When you restore from these backups, RESTORE creates a file for the new dbspace, at the start of the incremental restore. Similarly, if you drop a dbspace, it is dropped during the restore, although the actual file is not removed.
