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Expert Data Modeling with Power BI, Second Edition

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

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Product type Paperback
Published in Apr 2023
Publisher Packt
ISBN-13 9781803246246
Length 698 pages
Edition 2nd Edition
Languages
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Author (1):
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Soheil Bakhshi Soheil Bakhshi
Author Profile Icon Soheil Bakhshi
Soheil Bakhshi
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Table of Contents (22) Chapters Close

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

Understanding query parameters

One of the most valuable features is the ability to define query parameters. We can then use defined query parameters in various cases. For instance, we can create a query referencing a parameter to retrieve data from different datasets, or we can parameterize filter rows. With query parameters, we can parameterize the following:

  • Data Source
  • Filter Rows
  • Keep Rows
  • Remove Rows
  • Replace Rows

In addition, we can load the parameters’ values into the data model to reference them from measures, calculated columns, calculated tables, and report elements if necessary.

We can easily define a query parameter from Power Query Editor, as follows:

  1. Click Manage Parameters.
  2. Click New.
  3. Enter a name.
  4. Type in an informative description that helps the user understand the parameter’s purpose.
  5. Checking the Required box makes the parameter mandatory.
  6. Select a type from the...
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