abstraction data

PDO ( PHP Data Objects )-A new native database abstraction layer providing performance, ease-of-use, and flexibility.

1最增的数据库抽象层用于提供对数据库访问的对象,拥有良好的性能, 易于使用和灵活性的特点.

Term used to describe programs that use data abstraction, inheritance, and dynamic binding.

描述使用数据抽象 、 继承和动态绑定的程序的术语.

The data model of the topology graph of network and algorithm for topology abstraction were designed.

设计了网络拓扑图的数据模型与拓扑关系提取算法。

Data structure have been a difficult part in studying or programming because of its abstraction and theory profundity, and case-studying teaching and programming training with realistic model is the trend of teaching reform.

数据结构一向以它的抽象性和理论深度成为学习或编程的难点，结合现实模型进行案例分析式教学与编程训练是教学改革的趋势。

The MetaModel Database is an abstraction only and does not actually hold any data: It is simply a model.

MetaModel数据库仅仅是一种抽象，并没有实际保存任何数据：它只是一个模型。