EQUIVALENCE THEOREM FOR GENERALIZED DEPENDENCIES IN RELATIONAL DATABASES

Authors

  • Nguyễn Xuân Huy Institute of Information Technology, Vietnam Academy of Science and Technology , Viet Nam
  • Trương Thị Thu Hà Hanoi University of Business and Technology image/svg+xml , Viet Nam

DOI:

https://doi.org/10.37569/DalatUniversity.3.2.246(2013)

Keywords:

Data dependencies, Positive Boolean dependencies, Differential dependencies.

Abstract

In this paper, we present some new results related to the differential dependencies in relational databases. The main contributions are the following: (1) To introduce a new concept of generalized differential dependencies; (2) To claim and proof the equivalence theorem of consequences in the world of all relations, the word of two-tuple relations and propositional logic for the generalized differential dependencies; (3) To show an equivalence between generalized positive Boolean dependencies and generalized differential dependencies.

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Published

30-06-2013

Issue

Volume 3, Issue 2 (2013) - [No 6, Old version]

Section

Natural Sciences and Technology

License

Copyright (c) 2013 Nguyễn Xuân Huy, Trương Thị Thu Hà

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

How to Cite

Huy, N. X., & Hà, T. T. T. (2013). EQUIVALENCE THEOREM FOR GENERALIZED DEPENDENCIES IN RELATIONAL DATABASES. Dalat University Journal of Science, 3(2), 12-20. https://doi.org/10.37569/DalatUniversity.3.2.246(2013)