Is the background data downloaded only by oracle users?

Yes Oracle user is the user with the highest authority and has all the modification rights. Export data is the patent of the highest authority user, but other users don't, so the background import data can only be downloaded by oracle users. Oracle Corporation (Oracle Bone Inscriptions Company) is the world's largest information management software and service provider, founded in 1977, headquartered in Shore, redwood, California, USA, and open to the world for Oracle certification.