| 一种维类转换为维层次的方法 |
| |
| 引用本文： | ZHANG Yan,夏秀峰,YU Ge. 一种维类转换为维层次的方法[J]. 小型微型计算机系统, 2008, 29(8) |
| |
| 作者姓名： | ZHANG Yan 夏秀峰 YU Ge |
| |
| 作者单位： | 沈阳航空工业学院,计算机科学系,辽宁,沈阳,110034 |
| |
| 基金项目： | 辽宁省教育科学规划项目 |
| |
| 摘 要： | 分析维层次的结构和定义对数据仓库聚集操作的重要作用,确定了某些维类也可能产生类似维层次的分析要求,提出维类转换为维层次的CDCDH方法.给出维类和维层次的定义,并进一步提出显性维层次和隐性维层次的定义.对于表现为维类的隐性维层次,则确定其向显性维层次转换的条件和转换的步骤.同时结合一个具体的实例,说明了CDCDH方法的实施过程.
|
| 关 键 词： | 数据仓库 维类 维层次 |
Method for Conversion from Dimension Classes to Dimension Hierarchies |
| |
| ZHANG Yan,XIA Xiu-feng,YU Ge. Method for Conversion from Dimension Classes to Dimension Hierarchies[J]. Mini-micro Systems, 2008, 29(8) |
| |
| Authors: | ZHANG Yan XIA Xiu-feng YU Ge |
| |
| Affiliation: | ZHANG Yan1,XIA Xiu-feng2,YU Ge3 1(Computer Center,Shenyang Normal University,Shenyang 110034,China)2(Department of Computer Science , Engineering,Shenyang Institute of Aeronautical Engineering,China)3(School of Information Science , Engineering,Northeastern University,Shenyang 110004,China) |
| |
| Abstract: | After Analyzing the signification of structure and definition about dimension to aggregating operation,confirms that some dimension classes maybe produce analysis demands which are similar to dimension hierarchies,provides CDCDH method for conversion from dimension classes to dimension hierarchies.Gives definition on dimension class and dimension hierarchy,furthermore,gives definition on visible dimension hierarchy and hide dimension hierarchy.About hide dimension hierarchy which shows dimension class,confi... |
| |
| Keywords: | OLAP |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
