Stability constraints and stability normal forms for temporal relational databases

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)131-138
Journal / PublicationInformation and Software Technology
Volume41
Issue number3
Publication statusPublished - 25 Feb 1999

Abstract

This paper presents a new dynamic dependency and a new normal form. We give the concept of the stability constraint and establish complete axioms for stability constraints. In addition, we propose a stability normal form. A temporal third normal form can be losslessly decomposed into a sequence of stability constraints. Using the decomposition, the storage space can be reduced. The stability constraints allow to fill a suitable value into a null value. Thus, this null value therefore turns into a known value. © 1999 Elsevier Science B.V. All rights reserved.

Research Area(s)

  • Relational model, Stability constraints, Stability normal form, Temporal database