Journal of Computer Applications ›› 2005, Vol. 25 ›› Issue (03): 631-633.DOI: 10.3724/SP.J.1087.2005.0631
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LIU Qun,ZHANG Chun-hai,LI Hua
Online:
Published:
刘群,张春海,李华
Abstract:
The view maintenance process in the loosely coupled environment was implemented as a conceptual transaction, by the definitions of concurrency dependency and same-source dependency. Based on schema changes, the VMSCNF algorithm was proposed to solve the consistency of view maintenance processes in the non-FIFO network environments. Finally, a preliminary experiment was carried out to verify the efficiency of the proposed algorithm.
Key words: materialized view maintenance, schema changes, conceptual transaction model, complex updates
摘要:
通过定义不同数据源更新之间的并发依赖关系和同源依赖关系,利用概念化事务模型可实现松散耦合环境中视图的并发维护。在此基础上,提出VMSCNF算法,解决不稳定网络环境中基于模式更新的实视图一致性维护问题,并通过实验原型验证了算法有效性。
关键词: 实视图维护, 模式更新, 概念化事务模型, 复合更新
CLC Number:
TP311.13
LIU Qun,ZHANG Chun-hai,LI Hua. Materialized view maintenance strategy based on schema changes推[J]. Journal of Computer Applications, 2005, 25(03): 631-633.
刘群,张春海,李华. 基于模式更新的实视图一致性维护策略[J]. 计算机应用, 2005, 25(03): 631-633.
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URL: http://www.joca.cn/EN/10.3724/SP.J.1087.2005.0631
http://www.joca.cn/EN/Y2005/V25/I03/631