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A relational-calculus query language for historical databases

✍ Scribed by M.A Bassiouni; M.J Llewellyn


Book ID
113230406
Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
780 KB
Volume
17
Category
Article
ISSN
0096-0551

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πŸ“œ SIMILAR VOLUMES


Querying fuzzy relational databases thro
✍ JosΓ© Galindo; Juan Miguel Medina; MΒͺ Carmen Aranda πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 252 KB

´´Í n this paper we present a definition of a domain relational calculus for fuzzy relational databases using the GEFRED model as a starting point. It is possible to define an equivalent fuzzy tuple relational calculus and consequently we achieve the two query language levels that Codd designed for