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Mastering Microsoft Power BI – Second Edition

You're reading from   Mastering Microsoft Power BI – Second Edition Expert techniques to create interactive insights for effective data analytics and business intelligence

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Product type Paperback
Published in Jun 2022
Publisher Packt
ISBN-13 9781801811484
Length 712 pages
Edition 2nd Edition
Languages
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Authors (2):
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Greg Deckler Greg Deckler
Author Profile Icon Greg Deckler
Greg Deckler
Brett Powell Brett Powell
Author Profile Icon Brett Powell
Brett Powell
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Table of Contents (18) Chapters Close

Preface 1. Planning Power BI Projects 2. Preparing Data Sources FREE CHAPTER 3. Connecting to Sources and Transforming Data with M 4. Designing Import, DirectQuery, and Composite Data Models 5. Developing DAX Measures and Security Roles 6. Planning Power BI Reports 7. Creating and Formatting Visualizations 8. Applying Advanced Analytics 9. Designing Dashboards 10. Managing Workspaces and Content 11. Managing the On-Premises Data Gateway 12. Deploying Paginated Reports 13. Creating Power BI Apps and Content Distribution 14. Administering Power BI for an Organization 15. Building Enterprise BI with Power BI Premium 16. Other Books You May Enjoy
17. Index

Dataset layers

As covered in Chapter 1, Planning Power BI Projects, and Chapter 3, Connecting To Sources And Transforming Data With M, Power BI datasets are composed of three tightly integrated layers, which are all included within a Power BI Desktop file.

The first layer, the M queries described in Chapter 2, Preparing Data Sources, connect to data sources and optionally apply data cleansing and transformation processes to this source data to support the Data Model.

The second layer, the Data Model and the subject of this chapter, primarily involves the relationships defined between fact and dimension tables, hierarchies reflecting multiple levels of granularity of a dimension, and metadata properties such as the sort order applied to columns.

The final layer of datasets is discussed in Chapter 5, Developing DAX Measures and Security Roles, Data Analysis Expressions (DAX) measures. DAX measures leverage the Data Model to deliver analytical insights for presentation...

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