Generalized dependencies in relational databases
A new type of dependencies in a relational database model introduced in [5] is investigated. If b is an attribute, A is a set of attributes then it is said that b (p, g, )-depends on A, in notation A ^^ b, in a database relation r if there are no q + 1 tuples in r such that they have at most p diffe...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
1998
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| Sorozat: | Acta cybernetica
13 No. 4 |
| Kulcsszavak: | Számítástechnika, Kibernetika |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/12602 |