October 2006
Intermediate to advanced
464 pages
16h 11m
English
Content preview from Inside Microsoft® SQL Server™ 2005, Fourth EditionBecome 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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Lock Compatibility
Two locks are compatible if one lock can be granted while another lock on the same resource is held by a different process. If a lock requested for a resource is not compatible with a lock currently being held, the requesting connection must wait for the lock. For example, if a shared page lock exists on a page, another process requesting a shared page lock for the same page is granted the lock because the two lock types are compatible. But a process that requests an exclusive lock for the same page is not granted the lock because an exclusive lock is not compatible with the shared lock already held. Figure 8-2 summarizes the compatibility of locks in SQL Server 2005. Along the top are all the lock modes that a process might ...
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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.