Power Query M Language: Build Custom Functions for Advanced Data Transformation

Ever opened Power Query, clicked a few buttons, and thought, "Yeah... I totally know what I'm doing"-only to get lost five steps later? Welcome to the club. Hi, I'm Troy Kendrick, and this book is your friendly, no-nonsense guide to finally understanding the mysterious (and surprisingly powerful) world of the Power Query M Language-without falling asleep halfway through. Power Query M Language: Build Custom Functions for Advanced Data Transformation is not your typical dry, overly technical manual. This is the book I wish I had when I first stared at M code like it was written by aliens with a spreadsheet obsession. Inside, you'll go from "copy-pasting random formulas from the internet" to confidently writing your own custom functions like a data wizard. Here's what you'll learn (without the headache): - How Power Query actually works (yes, finally)- The logic behind M Language syntax-made simple- How to work with lists, records, and tables without confusion- Writing custom functions that save you hours of repetitive work- Advanced tricks like recursion and function chaining (sounds scary, isn't)- How to debug errors without wanting to flip your desk- Performance tips to make your queries faster and smarter- Real-world data transformation techniques you can actually use >This book is perfect for: - Excel users ready to level up- Power BI professionals who want deeper control- Data analysts tired of doing the same tasks manually- Anyone who's ever said, "There has to be a better way to do this" >By the end, you won't just "use" Power Query-you'll master it. So grab your coffee (or three), open your query editor, and let's turn you into the person everyone comes to when their data gets messy. Because messy data is inevitable-but struggling with it doesn't have to be.

Pagina's: 323, Paperback, Independently published