The functional data model and the data languages DAPLEX

  • Authors:
  • David W. Shipman

  • Affiliations:
  • Computer Corp. of America

  • Venue:
  • ACM Transactions on Database Systems (TODS)
  • Year:
  • 1981

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Abstract

DAPLEX is a database language which incorporates:a formulation of data in terms of entities;a functional representation for both actual and virtual data relationships;a rich collection of language constructs for expressing entity selection criteria;a notion of subtype/supertype relationships among entity types.This paper presents and motivates the DAPLEX language and the underlying data model on which it is based.