| 考虑更新频率等因素的物化视图有效更新算法 |
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| 引用本文： | 王新军 洪晓光 王海洋. 考虑更新频率等因素的物化视图有效更新算法[J]. 计算机科学, 2003, 30(12): 86-88 |
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| 作者姓名： | 王新军 洪晓光 王海洋 |
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| 作者单位： | 山东大学计算机科学与技术学院,济南,250100 |
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| 摘 要： | For the materialized views in the fast LAN or computing grid environment, it is a very important problem that how to refresh them efficiently when data sources have changed. In this paper, we take the update frequencies and the size of source relations into account and present a partition strategy and an efficient algorithm by creating auxiliary views. Our algorithm may decrease the cost of join operation and communication on network as low aspossible.
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| 关 键 词： | 数据仓库 数据源 物化视图有效更新算法 频率更新 数据库 |
An Efficient Refreshment Algorithm for Materialized View Considering the Update Frequencies |
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| WANG Xin-Jun HONG Xiao-Guang WANG Hai-Yang. An Efficient Refreshment Algorithm for Materialized View Considering the Update Frequencies[J]. Computer Science, 2003, 30(12): 86-88 |
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| Authors: | WANG Xin-Jun HONG Xiao-Guang WANG Hai-Yang |
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| Abstract: | For the materialized views in the fast LAN or computing grid environment, it is a very important problem that how to refresh them efficiently when data sources have changed. In this paper, we take the update frequencies and the size of source relations into account and present a partition strategy and an efficient algorithm by creating auxiliary views. Our algorithm may decrease the cost of join operation and communication on network as low as possible. |
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| Keywords: | Update frequency Materialized view Refreshment algorithm Data warehouse |
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