Hierarchies and Relative Operators in the OLAP Environment (Articolo in rivista)

Type
Label
  • Hierarchies and Relative Operators in the OLAP Environment (Articolo in rivista) (literal)
Anno
  • 2000-01-01T00:00:00+01:00 (literal)
Alternative label
  • POURABBAS E.; RAFANELLI M. (2000)
    Hierarchies and Relative Operators in the OLAP Environment
    in SIGMOD record
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • POURABBAS E.; RAFANELLI M. (literal)
Pagina inizio
  • 32 (literal)
Pagina fine
  • 37 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 29 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • IASI - Istituto di Analisi dei Sistemi ed Informatica \"Antonio Ruberti\", Consiglio Nazionale delle Ricerche, Italy (literal)
Titolo
  • Hierarchies and Relative Operators in the OLAP Environment (literal)
Abstract
  • In the last few years, numerous proposals for modelling and querying Multidimensional Databases (MDDB) are proposed. A rigorous classification of the different types of hierarchies is still an open problem. In this paper we propose and discuss some different types of hierarchies within a single dimension of a cube. These hierarchies divide in different levels of aggregation a single dimension. Depending on them, we discuss the characterization of some OLAP operators that refer to hierarchies in order to maintain the data cube consistency. Moreover, we propose a set of operators for changing the hierarchy structure. The issues discussed provide modelling flexibility during the scheme design phase and correct data analysis. (literal)
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