Komplexe Objekte und Anfragen in der Programmierung : Zur Integration von Datenbanken und Programmiersprachen
Language: German
Published by Deutscher Universitätsverlag, 1993
- Softcover
- New
Seller: AHA-BUCH GmbH, Einbeck, GermanyAHA-BUCH GmbH
AbeBooks seller since August 14, 2006
Condition: New
£ 47.43
Quantity: 1 available
Add to basketItem description from seller
nach der Bestellung gedruckt Neuware - Printed after ordering - Wahrend sich Programmiersprachen vorwiegend zur Formulierung von Algorith men eignen, bieten Datenbanksysteme wert volle Dienste beim Speichern und Wie derauffinden von Daten an. Bei der Programmierung von Datenbankanwendungen will man sich beide Vorteile zunutze machen, stoBt dabei aber auf das Problem, daB von Seiten der Programmiersprache und von Seiten des Datenbanksystems unterschiedliche Modellierungskonzepte angeboten werden. So unterstiitzen Da tenbanksysteme haufig die Modellierung strukturierter Datenmengen und die For mulierung deskriptiver Anfragen, wahrend Programmiersprachen nach wie vor auf die Manipulation einzelner Datensatze ausgerichtet sind. Diese unterschiedlichen Konzepte fiihren im Fall der Kopplung von Programmiersprachen und Datenbank systemen zwangslaufig zu Reibungsverlusten an der Schnittstelle zwischen beiden Systemen, die sich in aufwendigen und fehleranfalligen Typkonvertierungen auBern oder die Umformulierung deskriptiver Anfragen nach sich ziehen. Ziel der Integra tion von Datenbanken und Programmiersprachen ist es, solche Konvertierungen zu vermeiden. Letztlich will man zu einer Sprache gelangen, in der sich Datenbank objekte von Programmobjekten nur noch in ihrer Lebensdauer, nicht jedoch in Art der Definition und Handhabung unterscheiden. Ein vielversprechender Weg in diese Richtung ist der Entwurf von Datenbankprogrammiersprachen, die aus der Erweiterung von Programmiersprachen urn die Fahigkeiten eines spezifischen Datenmodells hervorgehen. Betrachtet man jedoch existierende Datenbankprogrammiersprachen, so faUt auf, daB deskriptive Anfragen darin haufig kein adaquates Pendant finden. Oft genug muB die Iteration iiber den Suchraum noch explizit ausformuliert werden, oder es stehen nicht geniigend aussagekraftige Sprachelemente zur Beschreibung von Such bedingungen zur Verfiigung.…
Seller Inventory # 9783824420407
- Title
- Komplexe Objekte und Anfragen in der Programmierung : Zur Integration von Datenbanken und Programmiersprachen
- Author
- Simone Rehm
- Publisher
- Deutscher Universitätsverlag
- Publication year
- 1993
- Condition
- Neu
- Binding
- Taschenbuch
- Language
- German
- ISBN 10
- 3824420406
- ISBN 13
- 9783824420407
- Item weight
- 311 grams
- Dimensions
- 210x148x13 mm
"Synopsis" may belong to another edition of this title.
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|---|---|---|
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