March 2018
Beginner to intermediate
638 pages
16h 29m
English
Content preview from Mastering Microsoft Power BI
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Slowly-changing dimensions
The product and customer dimension views retrieve both the surrogate key column used for relationships in the dataset as well as the business key that uniquely identifies the given product or customer, respectively. For example, the same product (FR-M94B-38) is represented by three product dimension rows (304, 305, 306) due to changes in its list price over time:
Slowly-changing dimension processing applied to Product Dimension
As discussed in Chapter 1, Planning Power BI Projects, the historical tracking of core business entities, such as customers and products, via slowly-changing dimension ETL processes is an ...
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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.