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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
Author (1):
Soheil Bakhshi Soheil Bakhshi
Profile icon 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

Splitting a column by delimiter

One of the most common transformation steps in Power Query is Split Column by Delimiter. There are many use cases for this transformation. The following are some of the use cases:

  • Splitting First Name, Middle Name, and Last Name from a Full Name column
  • Splitting date, time, and time zone elements from DateTimeZone values into separate columns
  • Splitting comma-delimited values into separate columns

Let us move forward with a scenario. In the previous section’s scenario, we converted the OrderDateTime column’s type to Date. In this scenario, the business needs to analyze the Internet Sales data at both the Date and Time levels. There are many techniques we can use to satisfy this new requirement, such as the following:

  • Creating a new Time table, which can be done either using DAX (we discussed this in Chapter 2, Data Analysis eXpressions and Data Modeling, in the Creating a Time dimension with DAX...
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