摘要
数据仓库系统是存储大量历史数,据供分析和对决策进行支持的系统。描述了水文信息系统中建立数据仓库的过程,包括数据仓库模型设计、主题的确定、粒度和维的确定、异构数据的转换等内容。
DW is a system that store large history data, and provide support for analyze and dicision. This paper describe the process of constructing DW in hydrological information system, which includes model designer, determination of theme, size and dimensions, and conversions in different kinds of DB.
出处
《电脑开发与应用》
2009年第8期55-56,64,共3页
Computer Development & Applications
