摘要
在进行分布式数据库系统（ＤＤＢＳ）的设计时，数据的分配问题对应用系统的可用性、可靠性及数据的存取效率具有直接的影响．以通信费用作为衡量标准，通过实例介绍了４ 种数据分配方法的原理及用法。
In designing of distributed database system(DDBS), the problem of data allocation has direct effect on availability, reliability, and efficiency of data access of application system. In this paper, the principles and applications of four kinds of data allocation methods are analysed and their respective advantages and disadvantages are also compared with each other by using a simple example based on the criterion of communication expenses.
出处
《甘肃工业大学学报》
1999年第4期61-65,共5页
Journal of Gansu University of Technology
关键词
分布式数据库
数据分配
数据片段
通信费用
distributed database
data allocation
data fragment
communication expense
