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http://dx.doi.org/10.18419/opus-8387
Autor(en): | Mitschang, Bernhard Pirahesh, Hamid Pistor, Peter Lindsay, Bruce Südkamp, Norbert |
Titel: | SQL/XNF - processing composite objects as abstractions over relational data |
Erscheinungsdatum: | 1993 |
Dokumentart: | Konferenzbeitrag |
Erschienen in: | Proceedings / Ninth International Conference on Data Engineering : April 19-23, 1993, Vienna, Austria. Los Alamitos, Calif. : IEEE Computer Soc. Press, 1993. - ISBN 0-8186-3570-3, S. 272-282. URL http://dx.doi.org/10.1109/ICDE.1993.344055 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-102625 http://elib.uni-stuttgart.de/handle/11682/8404 http://dx.doi.org/10.18419/opus-8387 |
Zusammenfassung: | An extension to SQL, called the SQL extended normal form (XNF), is discussed. It enhances relational technology by a composite object facility, which comprises not only extraction of composite objects from existing databases but also efficient navigation and manipulation facilities provided by an appropriate application programming interface. The language itself allows sharing of the database among normal form SQL applications and composite object applications. It provides proper subsetting of the database and subsequent structuring, exploiting subobject sharing and recursion, all based on its powerful composite object constructor concept, which is closed under the language operations. XNF is integrated into the relational framework, thus benefiting from the available technology such as relational engine and query optimization. |
Enthalten in den Sammlungen: | 15 Fakultätsübergreifend / Sonstige Einrichtung |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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mit34.pdf | 11,79 MB | Adobe PDF | Öffnen/Anzeigen |
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