September 2019
Beginner to intermediate
362 pages
9h 22m
English
Content preview from Learn Power BI
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Creating and understanding relationships
Now that we can clearly see our tables and columns, we can create relationships between our tables. Creating relationships between tables allows calculations and aggregations to work across tables so that multiple columns can be used from separate, related tables.
For example, once the People table and the Hours table are related to one another, we can use the ID column from the People table and the TotalHoursBilled column from the Hours table. By doing this, TotalHoursBilled will aggregate correctly for each user ID in the People table.
To create this relationship between the People table and the Hours table, perform the following step: Click on the ID column in the People table and drag and drop ...
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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.