A Pictorial Query Language for Querying Geographic Databases Using Positional and OLAP Operators (Articolo in rivista)

Type
Label
  • A Pictorial Query Language for Querying Geographic Databases Using Positional and OLAP Operators (Articolo in rivista) (literal)
Anno
  • 2002-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1145/565117.565121 (literal)
Alternative label
  • Pourabbas, E.; Rafanelli, M. (2002)
    A Pictorial Query Language for Querying Geographic Databases Using Positional and OLAP Operators
    in SIGMOD record
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pourabbas, E.; Rafanelli, M. (literal)
Pagina inizio
  • 22 (literal)
Pagina fine
  • 27 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 31 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Note
  • 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
  • A Pictorial Query Language for Querying Geographic Databases Using Positional and OLAP Operators (literal)
Abstract
  • The authors propose a declarative Pictorial Query Language (called PQL*) that is able to express queries on an Object-oriented geographic database drawing the features which form the query. These features refer to the classic ones of a geographic environment (geo-null, geo-points, geo-polyline, and geo-region) and define the alphabet of the above mentioned language. This language, extended with respect to a prevoius one, considers twelve positional operators and a set of their specifications. Moreover, the possibilty to use the mentioned language to query multidimensional databases is discussed. Finally, the characteristic of the mentioned language by a query example is shown. (literal)
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