| 基于模式更新的实视图一致性维护策略 |
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| 引用本文： | 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(3): 631-633. DOI: 10.3724/SP.J.1087.2005.0631 |
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| 作者姓名： | 刘群 张春海 李华 |
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| 作者单位： | 中国海洋大学,计算机科学系,山东,青岛,266071;中国海洋大学,计算机科学系,山东,青岛,266071;中国海洋大学,计算机科学系,山东,青岛,266071 |
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| 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。
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| 关 键 词： | 实视图维护 模式更新 概念化事务模型 复合更新 |
| 文章编号： | 1001-9081(2005)03-0631-03 |
Materialized view maintenance strategy based on schema changes |
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| LIU Qun,ZHANG Chun-hai,LI Hua. Materialized view maintenance strategy based on schema changes[J]. Journal of Computer Applications, 2005, 25(3): 631-633. DOI: 10.3724/SP.J.1087.2005.0631 |
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| Authors: | LIU Qun ZHANG Chun-hai LI Hua |
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| Affiliation: | Department of Computer Science, Ocean University of China |
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| 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 VM_SCNF 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. |
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| Keywords: | materialized view maintenance schema changes conceptual transaction model complex updates |
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