Materialized views :: techniques, implementations, and applications /

"When an application is built, an underlying data model is chosen to make that application effective. Frequently, other applications need the same data, only modeled differently. The solution of copying the underlying data and modeling is costly in terms of storage and makes data maintenance an...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Weitere Verfasser: Gupta, Ashish, 1968-, Mumick, Inderpal Singh
Format: Elektronisch E-Book
Sprache:English
Veröffentlicht: Cambridge, Mass. : MIT Press, 1999.
Schlagworte:
Online-Zugang:Volltext
Zusammenfassung:"When an application is built, an underlying data model is chosen to make that application effective. Frequently, other applications need the same data, only modeled differently. The solution of copying the underlying data and modeling is costly in terms of storage and makes data maintenance and evolution impossible. View mechanisms are a technique to model data differently for various applications without affecting the underlying format and structure of the data. The technique enables applications to customize shared data objects without affecting other applications that use the same objects. The growing data-manipulation needs of companies cannot be met by existing legacy systems that contain valuable data. Thus view mechanisms are becoming increasingly important as a way to model and use legacy data in new applications. Materialized views are views that have been computed and stored in databases. Because they reduce the need to recompute the view and/or data being queried, they speed up the querying of large amounts of data. Further, because they provide a systematic way to describe how to recompute the data, maintenance and evolution can be automated. Materialized views are especially useful in data warehousing, query optimization, integrity constraint maintenance, online analytical processing, and applications such as billing, banking, and retailing. This comprehensive volume, with a foreword by Jeff Ullman of Stanford University, will serve as a reference for students and commercial users, and encourage further use and development of materialized views."
Beschreibung:1 online resource (xix, 589 pages) : illustrations
Bibliographie:Includes bibliographical references (pages 551-579) and index.
ISBN:9780262287500
0262287501
058533174X
9780585331744
0262571226
9780262571227

Es ist kein Print-Exemplar vorhanden.

Volltext öffnen