分布式多媒体数据库模型的设计及对服务器数据库访问方法探索

Design of Distributed Multimedia Database and Researchof Method of Visiting Server Database

计算机科技工作者对多媒体的理论及模型设计进行了广泛的探索与研究，提出了不少模型设计的方法，如：用面向对象的方法，其优点是表示复杂的结构方便，但实现较困难。针对多媒体数据库的特点及网络化的需要，该文提出了一种数据库的模型设计，并对基于ＴＣＰ／ＩＰ协议的客户／服务器工作模式的数据库访问方法进行了研究；同时对多媒体数据库的数据在网络上的传送格式进行了定义。该文定义的多媒体数据库的数据类表示是关系数据库的扩展，又保持了关系数据库的规范性原理，也比较容易实现。

Computer technicians keep extensively exploring and researching on theory and model design of mul- timeadia database,and introduce some methods of model, Its superiority is that it is very easy to describe com- plex data structure, but difficult to implement .According to the features and needs of multimedia database,thispaper introduces a model design of multimedia database, and develops research on database visit based on client/server model of TCP/IP protocol,and defines data transfer format of multimedia database.It expands data type of relation database and keeps the normalization theory of relation database, and is easy to implement.