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The Definitive Guide to Power Query (M)

You're reading from The Definitive Guide to Power Query (M)

Product type Book

Published in Mar 2024

Publisher Packt

ISBN-13 9781835089729

Pages 758 pages

Edition 1st Edition

Languages

Concepts

Authors (3):

Gregory Deckler

Rick de Groot

Melissa de Korte

View More author details

Table of Contents (19) Chapters

Preface

1. Introducing M

2. Working with Power Query/M

3. Accessing and Combining Data

4. Understanding Values and Expressions

5. Understanding Data Types

6. Structured Values

7. Conceptualizing M

8. Working with Nested Structures

9. Parameters and Custom Functions

10. Dealing with Dates, Times, and Durations

11. Comparers, Replacers, Combiners, and Splitters

12. Handling Errors and Debugging

13. Iteration and Recursion

14. Troublesome Data Patterns

15. Optimizing Performance

16. Enabling Extensions

17. Other Books You May Enjoy

18. Index

Structured Values

In this chapter, we focus on an important concept in the Power Query M language: structured values. Whereas we introduced both values and data types in Chapters 4 and 5, structured values are more complex and require additional attention. Unlike simple or primitive values, they can include multiple other values within them. This complexity allows them to hold a range of primitive values, or even other structured values, opening up a wide range of possibilities for data manipulation and analysis.

The importance of structured values within the M language is such that we’re dedicating an entire chapter to them. The constructs you will learn not only contribute to more efficient and effective code, but also form the backbone of many operations within the M language.

This chapter covers the following topics:

Introducing structured values
Lists
Records
Tables

In each section, we will provide a clear explanation of the...

The rest of the chapter is locked

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Authors (3)

Gregory Deckler

Greg Deckler is a 7-time Microsoft MVP for Data Platform and an active blogger and Power BI community member, having written over 6,000 solutions to community questions. Greg has authored many books on Power BI, including Learn Power BI 1st and 2nd Editions, DAX Cookbook, Power BI Cookbook 2nd Edition and Mastering Power BI 2nd Edition. Greg has also created several external tools for Power BI and regularly posts video content to his YouTube channels, Microsoft Hates Greg and DAX For Humans.

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Rick de Groot

Rick de Groot was born in the Netherlands and has been working in BI for more than 14 years. He went freelance in 2016 and now works as an independent Power BI consultant. On his mission to make Power BI more accessible, he started two blogs: BI Gorilla and PowerQuery. how, and a YouTube channel sharing Power Query and Power BI content. His commitment to offering free content through multiple platforms has led him to earning the Microsoft Data Platform MVP award for two consecutive years.

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Melissa de Korte

Melissa de Korte's approach to facing challenges is fueled by relentless curiosity. She is a dedicated community member and content creator. Her portfolio includes blogs, tutorials, courses, and webinars, that make Power Query M more accessible and useful for all. Behind her professional persona lies a genuine dedication to empowering others through education and knowledge sharing, and a desire to encourage professionals to embrace the potential of Power Query, M.

See other products by Melissa de Korte

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