• DocumentCode
    3656545
  • Title

    HAS, a relational algebra operator or divide is not enough to conquer

  • Author

    John V. Carlis

  • Author_Institution
    Computer Science Department, University of Minnesota
  • fYear
    1986
  • Firstpage
    254
  • Lastpage
    261
  • Abstract
    The relational algebra operator division is misnamed, hard to understand and insufficient. This paper explains division and presents HAS, a generalization of division which is useful for answering questions about an M-M relationship between entities.
  • Keywords
    "Algebra","Compounds","Calculus","Relational databases","Computer science","Database systems"
  • Publisher
    ieee
  • Conference_Titel
    Data Engineering, 1986 IEEE Second International Conference on
  • Print_ISBN
    978-0-8186-0655-7
  • Type

    conf

  • DOI
    10.1109/ICDE.1986.7266229
  • Filename
    7266229
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3656545