December 2013
Intermediate to advanced
1872 pages
153h 31m
English
book
Microsoft® SQL Server 2012 Unleashed
by Ray Rankins, Paul T. Bertucci, Chris Gallelli, Alex T. Silverstein
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Clustered Tables
A clustered table is a table that has a clustered index defined on it. When you create a clustered index, the data rows in the table are physically sorted in the order of the columns in the index key. The data pages are chained together in a doubly linked list (each page points to the next page and to the previous page). Normally, data pages are not linked. Only index pages within a level are linked in this manner to allow for ordered scans of the data in an index level. Because the data pages of a clustered table constitute the leaf level of the clustered index, they are chained as well. This allows for an ordered table scan. The page pointers are stored in the page header. Figure 30.14 shows a simplified example of the data ...
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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.