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Advances in Object-Oriented Database Systems

Volume 334 of the series Lecture Notes in Computer Science pp 280-285

Date:

Identification of database objects by key

  • Norman W PatonAffiliated withDepartment of Computing Science, University of Aberdeen
  • , Peter M D GrayAffiliated withDepartment of Computing Science, University of Aberdeen

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Abstract

In relational databases one or more user-supplied scalar values are used to construct an identifier key representing the identity of an object. By contrast, object-oriented programming-languages and databases support the notion of object identity which is independent of the attribute values of the object. In this paper we compare the two approaches and describe a compromise based upon objects with keys.