March 2009
Intermediate to advanced
784 pages
30h 30m
English
book
Microsoft® SQL Server® 2008 Internals
by Paul Randal Kalen Delaney Kimberly Tripp, and Conor Cunningham
Content preview from Microsoft® SQL Server® 2008 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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Row-Level Locking vs. Page-Level Locking
Although SQL Server 2008 fully supports row-level locking, in some situations, the lock manager decides not to lock individual rows and instead locks pages or the whole table. In other cases, many smaller locks are escalated to a table lock, as I discuss in the upcoming section entitled "Lock Escalation.”
Prior to SQL Server 7.0, the smallest unit of data that SQL Server could lock was a page. Even though many people argued that this was unacceptable and it was impossible to maintain good concurrency while locking entire pages, many large and powerful applications were written and deployed using only page-level locking. If they were well designed and tuned, concurrency was not an issue, and some of these ...
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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.