You're reading from Expert Data Modeling with Power BI Get the best out of Power BI by building optimized data models for reporting and business needs

Product type Paperback

Published in Jun 2021

Publisher Packt

ISBN-13 9781800205697

Length 612 pages

Edition 1st Edition

Languages

DAX

Tools

Power BI

Concepts

Data Analysis

Author (1):

Soheil Bakhshi

View More author details

Table of Contents (18) Chapters

Preface

1. Section 1: Data Modeling in Power BI

2. Chapter 1: Introduction to Data Modeling in Power BI FREE CHAPTER

3. Chapter 2: Data Analysis eXpressions and Data Modeling

4. Section 2: Data Preparation in Query Editor

5. Chapter 3: Data Preparation in Power Query Editor

6. Chapter 4: Getting Data from Various Sources

7. Chapter 5: Common Data Preparation Steps

8. Chapter 6: Star Schema Preparation in Power Query Editor

9. Chapter 7: Data Preparation Common Best Practices

10. Section 3: Data Modeling

11. Chapter 8: Data Modeling Components

12. Chapter 9: Star Schema and Data Modeling Common Best Practices

13. Section 4: Advanced Data Modeling

14. Chapter 10: Advanced Data Modeling Techniques

15. Chapter 11: Row-Level Security

16. Chapter 12: Extra Options and Features Available for Data Modeling

17. Other Books You May Enjoy

Leave a review - let other readers know what you think

Introduction to composite models

In Chapter 4, Getting Data from Various Sources, we discussed different storage modes for a dataset. Let's quickly recall the storage modes for datasets, as follows:

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 somewhere else; therefore, we cannot make any changes in the data model. Instead, we can only get data ready from the data model.
Composite (Mixed): For 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 are...