A Foundation for Multi-dimensional Databases
A Foundation for Multi-dimensional Databases
复制标题
多维数据库的基础
DOI：
--
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
L. Lakshmanan
中科院分区：
文献类型：
--
作者：
M. Gyssens;L. Lakshmanan
我们提出了一个多维数据库模型，我们认为它可以作为基于联机分析处理（OLAP）的应用程序的概念模型。除了提供基于OLAP的应用程序所需的功能外，我们所提出的模型的主要特点是在结构方面和内容之间有明确的分离。这种关注点的分离使我们能够以一种相当简单、透明的方式定义数据操作语言。特别是，我们表明数据立方体操作符可以很容易地表达。具体来说，我们定义了一种代数和一种演算，并证明它们是等价的。最后，我们将我们的方法与相关工作进行了比较。这里开发的概念性多维数据库模型与其实现是正交的，这不是本文的主题。
We present a multi-dimensional database model, which we believe can serve as a conceptual model for On-Line Analytical Processing (OLAP)-based applications. Apart from providing the functionalities necessary for OLAP-based applications, the main feature of the model we propose is a clear separation between structural aspects and the contents. This separation of concerns allows us to define data manipulation languages in a reasonably simple, transparent way. In particular, we show that the data cube operator can be expressed easily. Concretely, we define an algebra and a calculus and show them to be equivalent. We conclude by comparing our approach to related work. The conceptual multi-dimensional database model developed here is orthogonal to its implementation, which is not a subject of the present paper.