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
Content preview from Microsoft® SQL Server 2012 UnleashedBecome 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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Deadlocks
Deadlocks are a common occurrence in database management systems (DMBSs). In simple terms, deadlocks occur when a process (for example, SPID 10) has a lock on a resource that another process (for example, SPID 20) wants. In addition, the second process (SPID 20) wants the resource that the first process has locked. This cyclic dependency causes the DBMS to kill one of the processes to resolve the deadlock situation.
Resolving deadlocks and identifying the deadlock participants can be difficult. In SQL Server 2012 and past versions, trace flag 1204 can be set to capture the processes involved in the deadlock. The output is text-based but provides valuable information about the types of locks and the statements that were executing at ...
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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.