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

Follow data type conversion best practices

We previously discussed different Power Query types in Chapter 3, Data Preparation in Power Query Editor, in the Introduction to Power Query (M) section. In Chapter 5, Common Data Preparation Steps, we also discussed that data type conversion is one of the most common data preparation steps. In both chapters, we looked at different data types available in Power Query. So, as a data modeler, it is crucial to understand the importance of data type conversion. This section looks at some best practices for data conversion and how they can affect our data modeling.

Data type conversion can affect data modeling

As mentioned, we already discussed the data types in Power Query in Chapter 3, Data Preparation in Power Query Editor, and Chapter 5, Common Data Preparation Steps. However, briefly recalling some points in this section is worthwhile to emphasize the importance of understanding data types in Power Query. In Power Query, we have only...