September 2017
Intermediate to advanced
802 pages
37h 6m
English
Content preview from Microsoft Power BI Cookbook
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SQL view layer
- Create a SQL View for each fact and dimension table to be represented in the data model
- The views should only select the columns required of the model and apply the model's column names
The layer of views protects the model from changes in the source system and provides visibility to administrators of the model's dependency. Additionally, the views can denormalize source tables via joins to conform to the structure of the model tables and potentially include derived columns not available in the source.
- In the following SQL example, the product dimension view joins three tables and applies model column names:
, C.EnglishProductCategoryName AS 'Product Category', P.ProductAlternateKey AS 'Product Alternate Key'FROMDBO.DimProduct ...
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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.