EQUIVALENCE THEOREM FOR GENERALIZED DEPENDENCIES IN RELATIONAL DATABASES
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
Volume and Issues
Section
Natural Sciences and Technology
Copyright & License
Copyright (c) 2013 Nguyễn Xuân Huy, Trương Thị Thu Hà
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)
