LC模型简介及其层次类型数据结构改进

Research on the Data Structure of Layer Dimension in LC Model

LC模型是一种用于进行OLAP建模的软件数据模型。在LC模型中,OLAP建模中的维度和度量都被统一成类型。类型分为非层次维和层次维。本文针对层次类型的存储结构进行了分析,并根据OLAP的特性对其存储结构进行了改进。改变后的存储结构可以方便的实现OLAP中的上钻,下探等操作。

LC model is a kind of software and data model, which can be used for OLAP modeling. In LCmodel, the measure and dimension are united to type, which is divided into non-layer and layer dimensions. This paper analyzes the data structure of the layer-type and improves the structure according to the feature of OLAP. The improvement data structure can be made to conveniently fit the use of OLAP.