April 2011
Beginner to intermediate
443 pages
11h
English
book
Foundations of SQL Server 2008 R2 Business Intelligence, Second Edition
by Lynn Langit, Guy Fouché
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Dimensions That Change
After you've selected the type of dimension to be used for your particular business scenario, another important concept is whether and how your model will support update behavior for the dimensional attribute values. To understand how to model for updates, consider that updates in SSAS need to be divided into two types: new values (or inserts) and changes (or updates or deletes of existing attribute values). Allowing inserts of new values for the dimension or fact tables does not require you to use any special modeling techniques. However, the business rules required for changes to dimensional attributes will affect the way you model those attributes.
In Chapter 2, we introduced the topic of modeling slowly (or rapidly) ...
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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.