August 2009
Intermediate to advanced
832 pages
26h 54m
German
book
Microsoft SQL Server 2008 Internals
by Kimberly L. Tripp, Conor Cunningham, Adam Machanic, Paul S. Randal, Kalen Delaney
Content preview from Microsoft SQL Server 2008 Internals
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8.11. Erweiterte Indizes
SQL Server enthält eine Reihe besonderer Indizes für besondere Anwendungsgebiete. Volltextindizes erleichtern die Speicherung, die Abfrage und den Abruf von Dokumenten. XML-Indizes werden für XQuery-Operationen an XML-Daten in der Datenbank verwendet. Räumliche Indizes, die in SQL Server 2008 neu eingeführt wurden, ermöglichen Abfragen räumlicher Daten. Diese Indizes eignen sich für ihren jeweiligen Bereich gewöhnlich besser als ein Index mit B+-Struktur, lassen sich aber nur für eine beschränkte Anzahl von Anwendungsfällen einsetzen. Der Abfrageoptimierer enthält zwar Vorkehrungen für diese Sonderindizes, doch unterscheiden sie sich im Prinzip nicht von B+-Indizes.
8.11.1. Volltextindizes
In SQL Server 2008 sind Volltextindizes ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.