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  • Book Overview & Buying The Definitive Guide to Power Query (M)
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The Definitive Guide to Power Query (M)

The Definitive Guide to Power Query (M)

By : Greg Deckler, Rick de Groot, Melissa de Korte
4.8 (34)
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The Definitive Guide to Power Query (M)

The Definitive Guide to Power Query (M)

4.8 (34)
By: Greg Deckler, Rick de Groot, Melissa de Korte

Overview of this book

Data transformation is a critical step in building data models and business intelligence reports. Power Query is an invaluable tool for anyone who wants to master data transformation, and this book will equip you with the knowledge and skills to make the most of it. The Definitive Guide to Power Query (M) will help you build a solid foundation in the Power Query M language. As you progress through the chapters, you'll learn how to use that knowledge to implement advanced concepts and data transformations. This will set the stage for an uncompromisingly thorough exploration of the Power Query M Language. You'll also get to grips with optimizing performance, handling errors, and implementing efficient data processing techniques. As this is a hands-on guide, the practical examples in the chapters will help you gain the skills to apply Power Query to real-world problems and improve your data analysis capabilities. By the end of this book, you will be able to leverage all of Power Query's remarkable capabilities for data transformation. *Email sign-up and proof of purchase required
Table of Contents (19 chapters)
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17
Other Books You May Enjoy
18
Index

Recursion

Recursion is a programming term that sounds more complex than it really is. Simply put, recursion happens when a function calls itself within its own definition. Think of it as a loop, but instead of using a typical for or while loop, the function uses itself to perform an operation multiple times.

Recursion is helpful for addressing problems where you need to repeat a task but the number of repetitions isn’t known beforehand. This operation requires an ending condition so that the iterations stop when they reach a specific condition, preventing infinite repetitions.

The concept of recursion has also been compared to the concept of Russian dolls. Imagine opening a Russian doll to find another one inside, and another inside that, and so on. This process continues until you reach the smallest doll that can’t be opened further. Each step is like a function calling itself, eventually reaching a point where it can no longer do so.

Why is recursion important...

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