May 2013
Intermediate to advanced
700 pages
20h 7m
German
book
Abfragen von Microsoft SQL Server 2012 - Original Microsoft Training für Examen 70-461
by Itzik Ben-Gan, Dejan Sarka, Ron Talmage
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Kapitel 17. Weitere Aspekte der Optimierung
Prüfungsziele in diesem Kapitel:
Fehlerbehebung und Optimierung
Optimieren von Abfragen
In Kapitel 15, haben Sie die internen Mechanismen für Indizes und Statistiken in Microsoft SQL Server kennengelernt, in Kapitel 14, die Instrumente, mit denen Sie die Ausführung von Abfragen untersuchen können. In diesem Kapitel geht es darum, wie SQL Server die in den Abfragen angeforderten Daten findet. SQL Server hat verschiedene Methoden für den Datenabruf und setzt auch unterschiedliche Verknüpfungsalgorithmen ein, deren jeweilige Stärken und Schwächen in diesem Kapitel besprochen werden.
Einen Ausführungsplan kann SQL Server auch für nachfolgende Abfragen wiederverwenden, die nicht mit der ursprünglichen identisch ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.