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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Nonstar Dimensions
You will probably be able to model the majority of your dimensions using the standard star schema. As SSAS gives you the flexibility to model cube measures by basing them on multiple source fact tables, it also gives you the ability to model dimensions in configurations other than simple star schemas. The types supported are listed briefly here and explained more fully in the following sections:
- Snowflake: This dimension is based on more than one table. This is called a referenced dimension in BIDS.
- Degenerate: This dimension is based on a column value from one of the fact tables, rather than using a dimension table. This is called a fact dimension in BIDS.
- Parent-child: This dimension is based on a hierarchy derived from ...
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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.