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《Computer Engineering and Applications》 2004-11
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The Study of Multi-Dimension Data Model for Data Warehouse

Shao Xiaowei Zhao Changan Zhao Jingzhu Shao Changsheng(School of Astr onauti cs,Harbin Institute of Technology,Harbin150001)  
To be the ba si c and core accept of data warehouse designing,the study of data model is effec ting the development of decision support technology deeply.In this paper,base d on the necessary of OLAP,six constraints of data modeling are presented.Afte r analysing the existing data models,under these constrains,a new data model i s presented,which has data model view with partition function,and uses the agg regation function to support the complex multi hierarchies.Along with the model ,an associated algebra that includes a set of OLAP operations and supports comp lex aggregation is also presented.
【Fund】: 航天“十五”支撑技术预研;; 国家部委科技预研重点项目
【CateGory Index】: TP311.13
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