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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How to find missing indexes
By now, we hope that you have understood the requirement of the index in performance. While developing a database table, initially it is not always possible for us to predict the right column as an index. So, as per our prediction, we used to generate an index that might be helpful; sometimes it would not even be used, and sometimes, we would need other indexes as well, apart from the initial index we had created. So, now the question arises as to how to find the indexes that are not even generated. How can we predict which indexes are missing and which we need to create?
Generally, whenever any query gets executed, SQL Server query optimizer finds the best index for the execution, and if it doesn't find it, the optimizer ...
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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.
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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.