program data independence
常见例句
- Program-data independence:It is a property of database system that the structure of data file is stored in the DBMS catalog separately from the access programs.
數據庫目錄包含每個文件的結搆，每條數據項的類型和存儲格式，以及針對數據的不同約束等信息。 - In order to keep the data independence from application program, the necessary local logical data structure can be self-defined in every individual application program.
爲了實現數據對應用程序的獨立性，應用程序自行定義所需要的侷部邏輯數據結搆。 返回 program data independence