Mantenimiento de dependencias funcionales como restricciobnes interrelacionales

  1. Hermida Correa, Román
  2. Tirado Fernández, Francisco
  3. Ruz Ortiz, José Jaime
  4. Bautista Paloma, Alfredo
Revista de informática y automática

ISSN: 0210-8712

Year of publication: 1985

Year: 18

Issue: 63

Pages: 36-41

Type: Article

More publications in: Revista de informática y automática


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