Research on Multidimensional Data Model in Data Warehouse  

作　　者：Guangjie LI 

机构地区：[1]Guangdong Industry Technical College, Guangzhou 510300, China

出　　处：《International Journal of Technology Management》2015年第1期120-122,共3页国际技术管理

摘　　要：Data structure and semantics of the traditional data model cannot effectively represent the data warehouse, it is difficult to effectively support online analytical processing （referred to as OLAP）. This paper is propose a new multidimensional data model based on the partial ordering and mapping. The data model can fully express the complex data structure and semantics of data warehouse, and provide an OLAP operation as the core of the operation of algebra, support structure in levels of complex aggregation operation sequence, which can effectively support the application of OLAE The data model supports the concept of aggregation function constraint, and provides constraint mechanism of the hierarchy aggregation function.

关 键 词：data warehouse data model multidimensional data model OLAP 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论] TP311.12[自动化与计算机技术—计算机科学与技术]