Mantenimiento de dependencias funcionales como restricciobnes interrelacionales
ISSN: 0210-8712
Year of publication: 1985
Year: 18
Issue: 63
Pages: 36-41
Type: Article
More publications in: Revista de informática y automática
Abstract
The lossless join descomposition of a relation scheme results, sometimes, in the imposibility to satisfy the dependency preserving property. This paper deals with a method to enforce, as a interrelational constraint, any functional dependence lost in the descomposition of a relation scheme. This method is based on the evaluation of some proposed relational algebra expression