Object-Oriented Database Management Systems: Concepts and Issues

  • Authors:
  • Elisa Bertino;Lorenzo Martino

  • Affiliations:
  • Univ. di Genova, Genoa, Italy;Datamont Research and Development Centre, Milan, Italy

  • Venue:
  • Computer - Special issue on instruction sequencing
  • Year:
  • 1991

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Abstract

Requirements imposed on both the object data model and object management by the support of complex objects are outlined. The basic concepts of an object-oriented data model are discussed. They are objects and object identifiers, aggregation, classes and instantiation mechanisms, metaclasses, and inheritance. Object-oriented models are compared with semantic, relational, and Codasyl models. Object-oriented query languages and query processing are considered. Some operational aspects of data management in object-oriented systems are examined. Schema evolution is discussed.