July 2012
Intermediate to advanced
478 pages
10h 3m
English
Content preview from Microsoft SQL Server 2012 Performance Tuning CookbookBecome 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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Monitoring current query execution statistics
In order to perform query tuning on production database server, you need to identify those resource-consuming queries and the source from where they are coming. For this, you need to monitor the incoming query requests and examine their execution time, number of read/write operations, and so on.
SQL Server has dedicated a separate category of DMVs and DMFs to query execution statistics. These DMVs and DMFs provide a wide range of statistics on query execution requests. The names of these execution-related DMVs and DMFs are generally prefixed by sys.dm_exec_. By examining the results returned by these DMVs and DMFs, you can find out long-running and resource-consuming queries, and pick them up for query ...
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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.