摘要
该文通过对集中式数据库和分布式数据库进行比较,指出集中式数据库在存储能力,访问速度等方面存在的问题,对分布式数据库中的数据复制和分片的概念,原则,方法进行详细的论述,最后,对数据复制和分片要解决的关键问题进行分析。
this paper compares distributed database with centralized database, and anaysises the problems in the storage and access speed of centralized database. In this paper, we give the concept of data replication and fragmentation in distributed database ,as well as principles and methods. Finally, we analysis the key problems data replication and fragmentation solved.
作者
宁华华
王慧
NING Hua-hua,WANG Hui (Collage of Computer and Information Technology, Henan Normal University,Xinxiang 453007,China)
出处
《电脑知识与技术》
2009年第7期5088-5089,共2页
Computer Knowledge and Technology
关键词
集中式数据库
分布式数据库
数据复制
数据分片
数据透明性
centralized database
distributed database
data replication
data txagmentation
data transparency