September 2010
Intermediate to advanced
1704 pages
111h 8m
English
book
Microsoft® SQL Server 2008 R2 Unleashed
by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft® SQL Server 2008 R2 Unleashed
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An Analytics Design Methodology
A data warehouse can be built from the top down or from the bottom up. To build a top-down warehouse, you need to form a complete picture or logical data model for the entire organization (or all the subsystems within the scope of the project, such as all financial systems). In contrast, building a warehouse from the bottom up takes a much more departmental or specific business-area focus (for example, a sales order system only). This breaks the task of modeling the data into more manageable chunks. Such a departmental approach produces data marts that are potentially subsets of the overall data warehouse. The bottom-up approach can simplify implementation. It helps get departmental or business-area information ...
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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.