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Supporting Dimension Updates in an OLAP Server

  • Alejandro A. Vaisman
  • Alberto O. Mendelzon
  • Walter Ruaro
  • Sergio G. Cymerman
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2348)

Abstract

Commercial OLAP systems usually treat OLAP dimensions as static entities. In practice, dimension updates are often needed to adapt the warehouse to changing requirements. In earlier work, we defined a taxonomy for these dimension updates and a minimal set of operators to perform them. In this paper we present TSOLAP, an OLAP server supporting fully dynamic dimensions. TSOLAP conforms to the OLE DB for OLAP norm, so it can be used by any client application based on this norm, and can use as backend any conformant relational server. We incorporate dimension update support to MDX, Microsoft’s language for OLAP, and introduce TSShow, a visualization tool for dimensions and data cubes. Finally, we present the results of a real-life case study in the application of TSOLAP to a medium-sized medical center.

Keywords

Data Warehouse Multidimensional Model Data Cube Fact Table Dimension Instance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Alejandro A. Vaisman
    • 1
  • Alberto O. Mendelzon
    • 2
  • Walter Ruaro
    • 1
  • Sergio G. Cymerman
    • 1
  1. 1.Universidad de Buenos AiresArgentina
  2. 2.University of TorontoCanada

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