摘要
在数据仓库中存在着大量的数据,对这些数据的查询与处理要消耗大量的资源,解决这一问题的有效办法是先将数据划分为便于处理的数据块,再对数据块进行处理,最后将处理结果进行归并。介绍了常用的基于划分的数据仓库查询归并技术及其在VB中的应用,并结合自己的编程经验给出了例证。
It will expend lots of resources to query and process huge data in data warehouse. Partitionbased query and merging technology is a solution to this problem,in which data are partitioned to several blocks easily processed, then the data blocks are processed individually, at last the process results are merged. One query and merging algorithm is presented and implemented by a VB program.
出处
《计算机应用》
CSCD
北大核心
2003年第9期139-140,共2页
journal of Computer Applications
基金
湖南省教育厅科研项目 (0 3CC3 2 )
关键词
数据仓库
数据划分
查询技术
data warehouse
data partition
query technology
