‘Possible’ membership of a multivalued dependency in a relational database
✍ Scribed by W.S. Luk
- Book ID
- 113162139
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 547 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0020-0190
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The concept of fuzzy multivalued dependencies (FMVDs) is introduced. It is concluded that FMVDs are more generalised than classical multivalued dependencies. A set of sound and complete inference rules, similar to Armstrong's axioms are proposed to derive more dependencies from a given set of FMVDs.
The need to incorporate and treat information given in fuzzy terms in Relational Databases has concentrated a great effort in the last years. This article focuses on the treatment of functional dependencies (f.d.1 between attributes of a relation scheme. We review other approaches to this problem an