元数据的定义和管理是实现数据仓库系统的一个难点。论文讨论了数据仓库系统中元数据的内容和作用，介绍了Microsoft公司为实现元数据的管理而推出的Open Information Model和Microsoft Repository等工具。在文章最后，介绍了利用以上...元数据的定义和管理是实现数据仓库系统的一个难点。论文讨论了数据仓库系统中元数据的内容和作用，介绍了Microsoft公司为实现元数据的管理而推出的Open Information Model和Microsoft Repository等工具。在文章最后，介绍了利用以上模型与工具所建立的一个元数据管理系统的实例。展开更多
The dimensions of many data sets have a complex-level structure in current multidimensional data ware-house models. But the data warehouse can't implement all the data at every node of these dimension levels becau...The dimensions of many data sets have a complex-level structure in current multidimensional data ware-house models. But the data warehouse can't implement all the data at every node of these dimension levels because of the large amount of data,so it's necessary to judge whether a data request is satisfiable in a complex-level-structure multidimensional data warehouse. In this paper,a method is presented to solve this problem. The characteristics of prime number are applied.展开更多
文摘元数据的定义和管理是实现数据仓库系统的一个难点。论文讨论了数据仓库系统中元数据的内容和作用，介绍了Microsoft公司为实现元数据的管理而推出的Open Information Model和Microsoft Repository等工具。在文章最后，介绍了利用以上模型与工具所建立的一个元数据管理系统的实例。
文摘The dimensions of many data sets have a complex-level structure in current multidimensional data ware-house models. But the data warehouse can't implement all the data at every node of these dimension levels because of the large amount of data,so it's necessary to judge whether a data request is satisfiable in a complex-level-structure multidimensional data warehouse. In this paper,a method is presented to solve this problem. The characteristics of prime number are applied.
基金黑龙江高等学校青年学术骨干支持计划项目(No.1151G002)黑龙江省科技攻关项目(the Key Technologies R&D Program of Heihongjiang Province of China under Grant No.2005G3674-00)黑龙江研究生创新科研基金项目(No.YJSCX2006-36HLJ)。
