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Learning Power Query M: Practical Techniques with wrapCols, wrapRows, and PI for Clean, Scalable Data Models - From Beginner to Professional
Paperback
Publisher: Independently Published
Published: Oct 6 2025
Pages: 114
Weight: 0.62
Height: 0.24 Width: 8.50 Depth: 11.00
Language: English
Data transformation is the foundation of every modern analytics workflow - and Power Query M is the engine that makes it happen. Whether you're working in Excel, Power BI, or Microsoft Dataflows, this book gives you the knowledge and confidence to master the M language from the ground up.
In Learning Power Query M, you'll go beyond point-and-click interfaces and learn to write clean, efficient, and reusable M scripts that unlock deeper automation, richer insights, and more flexible data models.
What You'll Learn
- Power Query Fundamentals - Understand the architecture, connectors, and data flow behind Power Query.
- M Language Syntax - Learn variables, functions, lists, records, and table operations through real examples.
- Transformations in Action - Combine, filter, and reshape data from multiple sources with precision.
- Automation & Parameters - Build dynamic solutions using query parameters and custom functions.
- Error Handling & Debugging - Use try...otherwise, conditional logic, and diagnostics tools to build reliable queries.
- Performance Optimization - Learn best practices for improving refresh time and efficiency.
- Integration with Power BI & Excel - Apply your M skills directly within the tools you already use.
Why This Book Stands Out
- Code-Driven Learning - Every concept includes examples you can run immediately.
- Real-World Scenarios - Based on practical business data challenges.
- Reusable Templates - Includes ready-made scripts for cleaning, merging, and aggregating data.
- Professional Focus - Ideal for analysts, BI developers, and Excel power users seeking deeper automation skills.
Who This Book Is For
- Data Analysts looking to automate and scale their transformations.
- Excel Users ready to move beyond formulas and macros.
- Power BI Professionals aiming to improve model efficiency and governance.
- Students & Educators seeking a clear, structured introduction to Power Query M.
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