摘要
物化视图选择是数据仓库研究领域的一个重要课题,其选择策略直接影响到数据仓库的查询效率。通过对超市数据仓库的设计及已有研究成果的分析,对物化视图的选择算法做了一些改进,并给出了一种据查询情况的变化动态调整物化视图集的算法。
To select materialized views is an important aspect of data warehouse domain, it affects the queries efficiency in data warehouse directly. After the design of supermarket data warehouse and the study of existing method, some improvement have been made for materialized views selection, and a dynamic adjustment algorithm has been raised according to change of the query.
出处
《计算机应用与软件》
CSCD
北大核心
2007年第3期91-93,共3页
Computer Applications and Software
关键词
数据仓库
物化视图
选择算法
调整算法
Data warehouse Materialized view Selection algorithm Adjustment algorithm
