Name independence and database abstraction in the relational model

  • N. Spyratos
  • F. Bancilhon
Part of the Lecture Notes in Computer Science book series (LNCS, volume 64)


In this paper, we have defined two concepts in the context of the relational model for databases. First, we have formalized the notion of internal domains by what we have called name independence. We then proceeded to formally define the abstraction process in a database schema. For an abstraction to be well-defined, we required that the schema be decomposable into independent projections. We have then derived conditions for well-defined abstractions, using the concepts of multi-valued dependency and name independence.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1978

Authors and Affiliations

  • N. Spyratos
    • 1
    • 2
  • F. Bancilhon
    • 1
  1. 1.IRIA-LABORIALe ChesnayFrance
  2. 2.Département de MathématiqueUniversité d'OrleansOrleansFrance

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