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...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
1993
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| Sorozat: | Acta cybernetica
11 No. 1-2 |
| Kulcsszavak: | Számítástechnika, Kibernetika |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/12519 |