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.
数据库目录包含每个文件的结构，每条数据项的类型和存储格式，以及针对数据的不同约束等信息。 - 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.
为了实现数据对应用程序的独立性，应用程序自行定义所需要的局部逻辑数据结构。 返回 program data independence