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Expert Data Modeling with Power BI - Second Edition

You're reading from Expert Data Modeling with Power BI - Second Edition

Product type Book

Published in Apr 2023

Publisher Packt

ISBN-13 9781803246246

Pages 698 pages

Edition 2nd Edition

Languages

Concepts

Business Intelligence

Author (1):

Soheil Bakhshi

Table of Contents (22) Chapters

Preface

1. Section I: Data Modeling in Power BI

2. Introduction to Data Modeling in Power BI

3. Data Analysis eXpressions and Data Modeling

4. Section II: Data Preparation in Query Editor

5. Data Preparation in Power Query Editor

6. Getting Data from Various Sources

7. Common Data Preparation Steps

8. Star Schema Preparation in Power Query Editor

9. Data Preparation Common Best Practices

10. Section III: Data Modeling

11. Data Modeling Components

12. Star Schema and Data Modeling Common Best Practices

13. Section IV: Advanced Data Modeling

14. Advanced Data Modeling Techniques

15. Row-Level and Object-Level Security

16. Dealing with More Advanced Data Warehousing Concepts in Power BI

17. Introduction to Dataflows

18. DirectQuery Connections to Power BI Datasets and Analysis Services in Composite Models

19. New Options, Features, and DAX Functions

20. Other Books You May Enjoy

21. Index

Understanding dataset storage modes

As you may have already guessed, dataset storage modes refer to whether the data in a dataset is cached in memory or not. With that in mind, from a dataset perspective, there are three different modes, as outlined next:

Import: When the whole data is cached in memory. In this mode, all tables are in the Import storage mode setting.
DirectQuery: When the data is not cached in memory. In this mode, all tables are in the DirectQuery storage mode setting.
Composite (Mixed): When a portion of data is cached in memory, while the rest is not. In this mode, some tables are in the Import storage mode setting; other tables are in DirectQuery storage mode or the Dual storage mode setting.

To see and edit the dataset storage modes in Power BI Desktop, look at the right side of the status bar, as shown in the following image:

Graphical user interface Description automatically generated with medium confidence

Figure 4.59: Identifying dataset storage modes in Power BI Desktop

Dataset storage mode is...

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Authors (1)

Soheil Bakhshi

Soheil Bakhshi is the founder of Data Vizioner and is a sought after BI consultant. Working in data and analytics for more than 20 years, Soheil's experience lies in Microsoft BI, Data Warehousing, and Power BI platform. He possesses MSCE, MCSA certifications and is a Microsoft MVP (Most Valuable Professional). He has a passion for sharing knowledge via his website and speaking at conferences and Power BI community events locally and globally. In following his desire for simplicity and efficiency, he is behind Power BI community tools and commercial products such as Power BI Exporter and Power BI Documenter.

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