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Power Query Cookbook Use effective and powerful queries in Power BI Desktop and Dataflows [#330707]
English | 2021 | ISBN: 1800569483 | 412 pages | True PDF EPUB | 73.9 MB
Leverage your source data from hundreds of different connections, perform millions of different transformations, and easily manage highly complex data lifecycles with Power Query
Key Features
Collect, combine, and transform data using Power Query's data connectivity and data preparation features
Overcome the problems faced while accessing data from multiple sources and reshape it to meet your business requirements
Explore how the M language can be used to write your own customized solutions
Book Description
Power Query is a data preparation tool that enables data engineers and business users to connect, reshape, enrich, and transform their data to facilitate relevant business insights and analysis. With Power Query's wide range of features, you can perform no-code transformations and complex M code functions at the same time to get the most out of your data.
This Power Query book will help you to connect to data sources, achieve intuitive transformations, and get to grips with preparation practices. Starting with a general overview of Power Query and what it can do, the book advances to cover more complex topics such as M code and performance optimization. You'll learn how to extend these capabilities by gradually stepping away from the Power Query GUI and into the M programming language. Additionally, the book also shows you how to use Power Query Online within Power BI Dataflows.
By the end of the book, you'll be able to leverage your source data, understand your data better, and enrich it with a full stack of no-code and custom features that you'll learn to design by yourself for your business requirements.
What you will learn
Understand how to use Power Query to connect and explore data
Explore ways to reshape and enrich data
Discover the potential of Power Query across the Microsoft platform
Build complex and custom transformations
Use M code to write new queries against data sources
Use the Power Query Online tool within Power BI Dataflows
Implement best practices such as reusing dataflows, optimizing expanding table operations, and field mapping
Who this book is for
This book is for data analysts, BI developers, data engineers, and anyone looking for a desk reference guide to learn how Power Query can be used with different Microsoft products to handle data of varying complexity. Beginner-level knowledge of Power BI and the M Language will help you to get the best out of this book.
Table of Contents
Getting Started with Power Query
Connecting to Fetch Data
Data Exploration in Power Query
Reshaping Your Data
Combining Queries for Efficiency
Optimizing Power Query Performance
Leveraging the M Language
Adding Value to Your Data
Performance Tuning with Power BI Dataflows
Implementing Query Diagnostics
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