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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7.4. Datenkomprimierung
SQL Server 2008 hat die Fähigkeit zur Datenkomprimierung, wobei diese neue Funktion jedoch nur in der Enterprise Edition zur Verfügung steht. Bei der Komprimierung wird die Größe von Tabellen verringert, indem unwirtschaftliche Strukturen in den tatsächlichen Daten beseitigt werden. Diese Strukturen können in zwei Kategorien fallen. Die erste betrifft die Speicherung einzelner Datenwerte in Spalten mit festgelegter Höchstgröße. Es kann z.B. vorkommen, dass Sie in einer Tabelle eine Spalte für eine Mengenangabe als int definieren müssen, da Sie darin gelegentlich Werte größer als 32.767, das Maximum für smallint, speichern müssen. Für int-Spalten brauchen Sie jedoch immer vier Bytes, und wenn die meisten Werte in dieser ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.