An Extended Algebra for Constraint Databases
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An Extended Algebra for Constraint Databases
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| Id. |
46382658 |
| Idioma |
inglés
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| Titulo |
An Extended Algebra for Constraint Databases |
| Autor(es) |
Alberto Belussi
Elisa Bertino
Barbara Catania
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| Localización |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.31.3679
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| Versión |
1.0 |
| Estado |
Final
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| Descripción |
Constraint relational databases use constraints to both model and query data. A constraint relation contains a finite set of generalized tuples. Each generalized tuple is represented by a conjunction of constraints on a given logical theory and, depending on the logical theory and the specific conjunction of constraints, it may possibly represent an infinite set of relational tuples. For their characteristics, constraint databases are well suited to model multidimensional and structured data, like spatial and temporal data. The definition of an algebra for constraint relational databases is important in order to make constraint databases a practical technology. In this paper, we extend the previously defined constraint algebra (called generalized relational algebra). First, we show that the relational model is not the only possible semantic reference model for constraint relational databases and we show how constraint relations can be interpreted under the nested relational model. Then...
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| Tipo |
application/postscript
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| Palabras clave |
algebra
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| Tipo de recurso |
Texto Narrativo
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| Tipo de Interactividad |
Expositivo
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| Nivel de Interactividad |
muy bajo
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| Audiencia |
Estudiante
Profesor
Autor
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| Estructura |
Atomic |
| Coste |
no
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| Copyright |
sí
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| Formatos |
application/postscript
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| Requerimientos técnicos |
Browser: Any
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| Relación |
[IsBasedOn] ftp://ftp.disi.unige.it/pub/person/CataniaB/tkde.ps.gz
[References] 10.1.1.131.7887
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[References] 10.1.1.33.5598
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[References] 10.1.1.112.6121
[References] 10.1.1.127.305
[References] 10.1.1.127.480
[References] 10.1.1.5.3525
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| Fecha de contribución |
24-jul-2009 |
| Contacto |
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