Algebraic and Graphic Languages for OLAP Manipulations

Algebraic and Graphic Languages for OLAP Manipulations

Franck Ravat (Universite Toulouse I, France), Olivier Teste (Universite Toulouse III, France), Ronan Tournier (Universite Toulouse III, France) and Gilles Zurfluh (Universite Toulouse I, France)
Copyright: © 2008 |Pages: 30
DOI: 10.4018/jdwm.2008010102

Abstract

This article deals with multidimensional analyses. Analyzed data are designed according to a conceptual model as a constellation of facts and dimensions, which are composed of multi-hierarchies. This model supports a query algebra defining a minimal core of operators, which produce multidimensional tables for displaying analyzed data. This user-oriented algebra supports complex analyses through advanced operators and binary operators. A graphical language, based on this algebra, is also provided to ease the specification of multidimensional queries. These graphical manipulations are expressed from a constellation schema and they produce multidimensional tables.

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