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The Definitive Guide to Power Query (M)

You're reading from   The Definitive Guide to Power Query (M) Mastering complex data transformation with Power Query

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Product type Paperback
Published in Mar 2024
Publisher Packt
ISBN-13 9781835089729
Length 758 pages
Edition 1st Edition
Languages
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Authors (3):
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Greg Deckler Greg Deckler
Author Profile Icon Greg Deckler
Greg Deckler
Melissa de Korte Melissa de Korte
Author Profile Icon Melissa de Korte
Melissa de Korte
Rick de Groot Rick de Groot
Author Profile Icon Rick de Groot
Rick de Groot
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Table of Contents (19) Chapters Close

Preface 1. Introducing M FREE CHAPTER 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

Putting it all together

Throughout this chapter, you have gained insights into various aspects of error handling in Power Query. You have learned about the nature of errors, how to raise them intentionally, as well as how errors are contained, detected, and ultimately handled. With this foundational knowledge in hand, it is time to consolidate your learning by delving into two practical examples that showcase real-world scenarios of error handling in action. These examples will provide a deeper understanding of how to prevent errors, make deliberate choices, and address errors when they arise.

Feel free to design your own approach to these scenarios before diving into them. If you are not comfortable translating that into M code, that is absolutely fine. You can still create an outline and think of obstacles that have to be overcome. This will allow you to compare your strategy to the one suggested here. But remember, there are a multitude of solutions to any given problem, and...

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