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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Changes in log size
No matter how many physical files have been defined for the transaction log, SQL Server always treats the log as one contiguous stream. For example, when the DBCC SHRINKDATABASE command determines how much the log can be shrunk, it doesn’t consider the log files separately but instead determines the shrinkable size based on the entire log.
Understanding virtual log files
The transaction log for any database is managed as a set of virtual log files (VLFs) whose size is determined internally by SQL Server based on the total size of all log files and the growth increment used when enlarging the log. When a log file is first created, it always has between 2 and 16 VLFs. If the file size is 1 MB or less, SQL Server divides the size ...
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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.