| 分布式数据源的实视图维护算法研究 |
| |
| 引用本文： | 谢民主,伍祥生. 分布式数据源的实视图维护算法研究[J]. 计算机工程与应用, 2005, 41(28): 170-173 |
| |
| 作者姓名： | 谢民主 伍祥生 |
| |
| 作者单位： | 1. 湖南师范大学物理和信息科学学院,长沙,410081;中南大学信息科学与工程学院,长沙,410083
2. 湖南师范大学物理和信息科学学院,长沙,410081 |
| |
| 摘 要： | 数据仓库作为决策支持系统的集成化数据中心,其数据可以认为是定义在多个不同数据源的实视图集。近年来数据仓库中实视图维护算法的研究激起很多学者的重视。当多个独立的数据源出现并发更新时传统的实视图维护算法可能导致视图维护异常,本文提出了一个双向扫描并行处理实视图维护(BSP)算法,能确保实视图与数据源的完全一致性,并通过实验与其它类似的算法进行了比较,说明本算法具有较高的效率。
|
| 关 键 词： | 分布式数据源 数据仓库 实视图维护 |
| 文章编号： | 1002-8331-（2005）28-0170-04 |
| 收稿时间： | 2004-12-01 |
| 修稿时间： | 2004-12-01 |
Research on Materialized View Maintenance Algorithm of Distributed Sources |
| |
| Xie Minzhu,Wu Xiangsheng. Research on Materialized View Maintenance Algorithm of Distributed Sources[J]. Computer Engineering and Applications, 2005, 41(28): 170-173 |
| |
| Authors: | Xie Minzhu Wu Xiangsheng |
| |
| Affiliation: | 1.College of Physics and Information Science,Hunan Normal University,Changsha 410081; 2.College of Information Science and Engineering,Central South University,Changsha 410083 |
| |
| Abstract: | As the data center for DDS,a data warehouse is a set of materialized views defined on many different information sources.In the past few years,the problem of materialized view maintenace has evoked great interest.The traditional view maintenance algorithms may cause anomalies when data updates are happening concurrently at the information sources.The paper introduce a bi-directed scan parellel process materialized view maintenance(BSP)algorithm,which can keep the materialized view complete consistent with the information sources.Experiment data shows that the BSP algorithm is efficient. |
| |
| Keywords: | distributed sources data warehouse materialized view maintenance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
