Obiekt
Tytuł: A formal data model and object algebra for object-oriented databases
Współtwórca:
Korbicz, Józef (1951- ) - red. ; Uciński, Dariusz - red.
Tytuł publikacji grupowej:
Abstract:
In this paper we describe a formal object-oriented data model and a corresponding object-algebra. Described in the literature are two trends in query support for object-oriented databases. The first trend is to preserve existing objects, while the other trend allows for the creation of new objects. ; The object algebra presented in this paper is of the second type and includes operators of the relational algebra in addition to some others, but the semantics of all those operations has been specified to accomodate to the object-oriented features. An operand should have a defined set of objects and a set of message expressions. ; A message expression is sequence of messages. Also the result of any operation is defined to have the two sets and therefore, can be an operand. Hence the closure property is satisfied. Finally we include some of the properties of the described object algebra operators.
Wydawca:
Zielona Góra: Uniwersytet Zielonogórski
Identyfikator zasobu:
Strony:
Źródło:
AMCS, volume 2, number 1 (1992) ; kliknij tutaj, żeby przejść
Jezyk:
Prawa do dysponowania publikacją:
Biblioteka Uniwersytetu Zielonogórskiego
Kolekcje, do których przypisany jest obiekt:
- Zielonogórska Biblioteka Cyfrowa > Repozytorium > Jednostki organizacyjne > Wydział Informatyki, Elektrotechniki i Automatyki
- Zielonogórska Biblioteka Cyfrowa > Repozytorium > Typy utworów > Artykuły
- Zielonogórska Biblioteka Cyfrowa > Repozytorium > Czasopisma naukowe i serie wydawnicze UZ > International Journal of Applied Mathematics and Computer Science (AMCS)
- Zielonogórska Biblioteka Cyfrowa > Repozytorium > Czasopisma naukowe i serie wydawnicze UZ > International Journal of Applied Mathematics and Computer Science (AMCS) > International Journal of Applied Mathematics and Computer Science (AMCS) (1992)
Data ostatniej modyfikacji:
2024-11-05
Data dodania obiektu:
2020-07-03
Liczba wyświetleń treści obiektu:
87
Wszystkie dostępne wersje tego obiektu:
https://zbc.uz.zgora.pl/publication/63776
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Wyświetl opis w formacie OAI-PMH:
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International Journal of Applied Mathematics and Computer Science (AMCS)
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| Nazwa wydania | Data |
|---|---|
| A formal data model and object algebra for object-oriented databases | 2024-11-05 |
