分布式数据库复制实施策略中的冲突预防和解决  

Conflict Avoidance and Resolution in Replication Implementation Strategy of Distributed Database

作　　者：杨勇[1] 杨薇薇[1] 

机构地区：[1]华中科技大学计算机学院,湖北武汉430074

出　　处：《计算机与现代化》2003年第10期10-14,共5页Computer and Modernization

摘　　要：复制是分布式数据库实施策略中的重要一种,它能大大提高各结点的自治性,同时保证各结点数据副本之间的松散一致性,然而各结点自主的数据操作之间很可能发生冲突。针对这种情况,提出了设计分布式数据库时就积极地采取措施尽可能预防冲突发生;当冲突发生时,采用合理的策略来解决冲突。最后,以SQLServer2000为例来说明这种思想的具体应用。Replication is an important strategy to implement distributed database,it can improve the autonomy of every site greatly and maintain the loose consistency of the data copies of every site in the mean time,however,data operations in every site are probable to conflict with each other.In this context,the idea is presented that effective measures should be taken to avoid the occurrences of conflicts as much as possible during the design process of distributed database and reasonable strategy should be taken to resolve the conflicts when they occur.At last,the paper discusses how to apply this idea in SQL Server 2000.

关 键 词：分布式数据库 分布式事务 冲突预防 数据复制 数据分布 数据一致性 

分 类 号：TP311.133.1[自动化与计算机技术—计算机软件与理论]