September 2017
Intermediate to advanced
802 pages
37h 6m
English
Content preview from Microsoft Power BI Cookbook
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Active verus inactive customers
The following example identifies the customers who purchased last year but haven't yet purchased this year.
- Create a measure for missing or inactive customers
- Use DAX variables and time intelligence functions to produce two filtered sets of customer keys.
Count of Last Year Customers ex Current Year = VAR Today = TODAY() VAR CurrentYear = YEAR(Today) VAR LastYear = YEAR(Today) - 1 VAR LYCustomers = SUMMARIZE(CALCULATETABLE('Internet Sales', FILTER(ALL('Date'),'Date'[Calendar Year] = LastYear)),Customer[Customer Alternate Key]) VAR CYCustomers = SUMMARIZE(CALCULATETABLE('Internet Sales', FILTER(ALL('Date'),'Date'[Calendar Year] = CurrentYear)),Customer[Customer Alternate Key])RETURNCALCULATE(DISTINCTCOUNT(Customer[Customer ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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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.
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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.