August 2014
Intermediate to advanced
808 pages
25h 30m
English
Content preview from SAS Data Integration Studio 4.9
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Removing Non-Essential Indexes and Constraints
during a Load
Problem
You want to improve the performance of a job that includes a table that contains one or
more non-essential indexes.
Solution
You can remove non-essential indexes before a load and recreate those indexes after the
load. In some situations, this procedure improves performance. As a general rule,
consider removing and recreating indexes if more than 10 percent of the data in the table
requires reloading.
You might also want to temporarily remove key constraints in order to improve
performance. If you remove constraints from the target before the load, then you remove
the overhead of ...
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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.