December 2012
Intermediate to advanced
752 pages
22h 12m
English
book
Training Kit (Exam 70-461): Querying Microsoft® SQL Server® 2012
by Dejan Sarka Itzik Ben-Gan and Ron Talmage
Content preview from Training Kit (Exam 70-461): Querying Microsoft® SQL Server® 2012Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 15. Implementing Indexes and Statistics
Exam objectives in this chapter:
Create Database Objects
Create and alter views (simple statements).
Troubleshoot & Optimize
Optimize queries.
In Chapter 14, you learned about the tools that help you find performance problems. Indexes are mentioned in that chapter many times. This is not a coincidence. Proper indexing is necessary for good performance of your databases. In order to create appropriate indexes, you need to understand how Microsoft SQL Server stores data in tables and indexes, and how it then accesses this data. You learn about this in the longest lesson in this chapter, Lesson 1: Implementing Indexes.
No indexes can help you if you write inefficient queries. In Lesson 2: Using Search Arguments ...
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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.