November 2013
Intermediate to advanced
982 pages
34h 23m
English
book
Microsoft SQL Server 2012 Internals
by Bob Beauchemin Kalen Delaney Conor Cunningham, Jonathan Kehayias, Benjamin Nevarez, and Paul S. Randal
Content preview from Microsoft SQL Server 2012 InternalsBecome 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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Understanding B-tree index structures
As discussed earlier in this chapter, B-tree index structures are divided into two basic components of the index: the leaf level and the non-leaf level(s). The details in this section can help you better understand what’s specifically stored within these portions of your indexes and how they vary based on index type.
Clustering key dependency
The leaf level of a clustered index contains the data, not just the index keys. So the answer to the question, “What else is in the leaf level of a clustered index besides the key value?” is “Everything else”—that is, all the columns of every row in the table are in the leaf level of a clustered index. Another way to say this is that when a clustered index is created, the ...
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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.