You're reading from Expert Data Modeling with Power BI, Second Edition Enrich and optimize your data models to get the best out of Power BI for reporting and business needs

Product type Paperback

Published in Apr 2023

Publisher Packt

ISBN-13 9781803246246

Length 698 pages

Edition 2nd Edition

Languages

DAX

Tools

Power BI

Concepts

Business Intelligence

Author (1):

Soheil Bakhshi

View More author details

Table of Contents (22) Chapters

Preface

1. Section I: Data Modeling in Power BI

2. Introduction to Data Modeling in Power BI FREE CHAPTER

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

Introduction to composite models

In Chapter 4, Getting Data from Various Sources, we discussed different storage modes for a dataset. The following is a quick refresher on the datasets’ storage modes:

Import: For when we keep the data model in Power BI, and the whole data is cached in the memory. In this mode, all tables are in Import storage mode.
DirectQuery: For when we create a data model in Power BI, but the data is NOT cached in the memory. In this mode, all tables are in DirectQuery storage mode.
Connect Live: A specific type of DirectQuery, connecting to a semantic model, not a relational database (data store). When we use Connect Live, the data model is hosted elsewhere; therefore, we cannot make any changes to the data model. Instead, we can only get data ready from the data model.
Composite (Mixed): When a portion of data is cached in the memory while the rest is not. In this mode, some tables are in Import storage mode, and some tables...