Learn how to use the Power Query M formula language and its functions effectively for better data modeling and impactful business intelligence reports.

Purchase of the print or Kindle book includes a free PDF eBook

Key Features

Get comprehensive coverage of fundamental and advanced Power Query concepts
Gain hands-on experience with practical examples based on real-world problems
Delve into the intricacies of Power Query M language for enhanced data manipulation

Book Description

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 before going on a no-compromise 'deep dive' into 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

What you will learn

Gain a strong understanding of Power query fundamentals
Master various functions within Power Query to perform complex data operations
Acquire knowledge about values, types, and control structures in Power Query
Develop proficiency in error handling techniques
Learn performance optimization strategies for Power Query
Apply what you've learned to real-world scenarios, including common troublesome patterns

Who this book is for

This book is for business analysts, business intelligence professionals, and power business users working with data who want to add Power Query mastery to their resume. This book will be beneficial for anyone who wants to automate their process of data cleaning and save huge amount of time. Having some basic experience in Power Query is recommended.

Table of Contents

Introducing M
Working with Power Query/M
Accessing and Combining Data
Understanding Values and Expressions
Understanding Data Types
Structured Values
Conceptualizing M
Working with Nested Structures
Parameters and Custom Functions
Dealing with Dates, Times, and Durations
Comparers, Replacers, Combiners, and Splitters
Handling Errors and Debugging
Iteration and Recursion
Troublesome Data Patterns
Optimizing Performance
Enabling Extensions

About the Authors

Greg Deckler is Vice President of the Microsoft Practice at Fusion Alliance and has been a professional technology systems consultant for over 25 years. Internationally recognized as an expert in Power BI, Greg Deckler is a Microsoft MVP for Data Platform and a superuser within the Power BI community with over 100,000 messages read, more than 11,000 replies, over 2,300 answers, and more than 75 entries in the Quick Measures Gallery. Greg founded the Columbus Azure ML and Power BI User Group (CAMLPUG) and presents at numerous conferences and events, including SQL Saturday, DogFood, and the Dynamic Communities User Group/Power Platform Summit.

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.

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

"About this title" may belong to another edition of this title.

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