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
On data dependency structures of relational databases
โ Scribed by W.S. Luk
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 839 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0959-2954
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Based on the semantic equivalence degree the formal definitions of fuzzy functional dependencies (FFDs) and fuzzy multivalued dependencies (FMVDs) are first introduced to the fuzzy relational databases, where fuzziness of data appears in attribute values in the form of possibility attributions, as w
A.bstract--Functional dependencies (FDs) and inclusion dependencies (INDs) are the most fundamental database integrity constraints, and they are used in many data models. In a previous paper, we described a synthesis algorithm for the design of a relation database from FDs. In this paper, the effect