April 2017
Beginner to intermediate
512 pages
16h 24m
English
book
Tabular Modeling in Microsoft SQL Server Analysis Services, Second Edition
by Marco Russo, Alberto Ferrari
Content preview from Tabular Modeling in Microsoft SQL Server Analysis Services, Second Edition
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Chapter 5. Building hierarchies
Hierarchies are a much more important part of a tabular model than you might think. Even though a tabular model can be built without any hierarchies, hierarchies add a lot to the usability of a model—and usability issues often determine the success or failure of a business intelligence (BI) project. The basic process of building a hierarchy was covered in Chapter 2, “Getting started with the tabular model.” This chapter looks at the process in more detail and discusses some of the more advanced aspects of creating hierarchies: when you should build them, what the benefits and disadvantages of using them are, how you can build ragged hierarchies, and how you can model parent-child relationships.
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