October 2015
Beginner to intermediate
592 pages
18h 40m
English
book
The Definitive Guide to DAX: Business intelligence with Microsoft Excel, SQL Server Analysis Services, and Power BI
by Marco Russo, Alberto Ferrari
Content preview from The Definitive Guide to DAX: Business intelligence with Microsoft Excel, SQL Server Analysis Services, and Power BI
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Chapter 11. Handling hierarchies
DAX does not have any built-in function that provides calculations over hierarchies between attributes and entities. However, the underlying data model can include the definition of hierarchies used by client tools to simplify the browsing experience over data. A data model supports only regular hierarchies between columns of the same table, and does not have a native support for parent-child hierarchies.
In this chapter, you will learn how to create calculations over hierarchies and how to use DAX to transform a parent-child hierarchy into a regular hierarchy managed by the data model.
Computing percentages over hierarchies
When you have a hierarchy in the data model, a common requirement is a measure that has ...
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