As a database system, independent of the data (Data Independence) is the most important advantage because it does not depend on the data to replacing physical information (Physical Data Independence).
Database to the Freedom of Information (Data Independence) is the most important because it is not based on the value of physical (Physical Data Independence).
Database system the freedom of information (Data Independence) is important because the benefits ทำให้ข้อมูล does not depend on the physical representation of data. (Physical Data Independence).