Some problems concerning Armstrong relations of dual schemes and relation schemes in the relational datamodel

Several papers [3,5,6,7,8,9,11,12] have appeared for investigating dual dependency. The practical meaning of dual dependency was shown in [5,6]. In this paper we give some new results concerning dual dependency. The concept of dual scheme is introduced. Some characterizations of dual scheme, such as...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Demetrovics János
Thi Vu Duc
Dokumentumtípus: Cikk
Megjelent: 1993
Sorozat:Acta cybernetica 11 No. 1-2
Kulcsszavak:Számítástechnika, Kibernetika
Tárgyszavak:
Online Access:http://acta.bibl.u-szeged.hu/12519

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