August 2019
Intermediate to advanced
768 pages
26h
English
book
Definitive Guide to DAX, The: Business intelligence for Microsoft Power BI, SQL Server Analysis Services, and Excel, 2nd Edition
by Alberto Ferrari, Marco Russo
Content preview from Definitive Guide to DAX, The: Business intelligence for Microsoft Power BI, SQL Server Analysis Services, and Excel, 2nd Edition
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Chapter 8Time intelligence calculations
Almost any data model includes some sort of calculation related to dates. DAX offers several functions to simplify these calculations, which are useful if the underlying data model follows certain specific requirements. On the other hand, if the model contains peculiarities in the handling of time that would prevent the use of standard time intelligence functions, then writing custom calculations is always an option.
In this chapter, you learn how to implement common date-related calculations such as year-to-date, year-over-year, and other calculations over time including nonadditive and semi-additive measures. You learn both how to use specific time intelligence functions and how to rely on custom DAX ...
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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.
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