September 2017
Intermediate to advanced
802 pages
37h 6m
English
Content preview from Microsoft Power BI Cookbook
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Remove automatic type detection steps
- Remove any Changed Type steps that were applied automatically to your queries.
- This step will be applied to unstructured sources such as data tables from Excel workbooks and can be found immediately following selection of the source item.
Figure 143: Automatic Data Type Selection Step
- View the expression of the step to observe that every column was referenced by its specific column name.
Figure 144: M Expression generated by automatic data type detection
- If even one of the source columns is removed ...
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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.