摘要
本文通过对数据仓库中数据集成四个阶段的分析研究,使得当大量异构数据涌入数据仓库中时系统如何将它们集成为数据仓库中的统一格式,很好地满足决策支持,取得较好效果。
Through researching and analysis on data integration of data warehouse ,we can get a good effect on system performance when a great deal of heterogeneous data swarming into it. Heterogeneous data are changed into union format before into data warehouse, which satisfies the need of decision support.
出处
《农业网络信息》
2006年第8期56-58,共3页
Agriculture Network Information
关键词
数据集成
数据仓库
数据清洗
聚集
Data integration
Data warehouse
Data cleaning
Congregation
