![Allows the DBA to change the way data is physically stored without requiring that applications be re Allows the DBA to change the way data is physically stored without requiring that applications be re](https://homeworkhelp.cc/zb_users/upload/Mochu_Feiniao/articleimg/4.jpg)
Allows the DBA to change the way data is physically stored without requiring that applications be re
Physical Data Independence:A.Requires that all structures at the conceptual level are implemented by some structures at the physical levelB.Allows the DBA to optimize the