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Microsoft Power BI Quick Start Guide

Microsoft Power BI Quick Start Guide

By : Devin Knight, Erin Ostrowsky, Mitchell Pearson , Bradley Schacht, Schacht
4.5 (49)
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Microsoft Power BI Quick Start Guide

Microsoft Power BI Quick Start Guide

4.5 (49)
By: Devin Knight, Erin Ostrowsky, Mitchell Pearson , Bradley Schacht, Schacht

Overview of this book

Updated with the latest features and improvements in Power BI, this fast-paced yet comprehensive guide will help you master the core concepts of data visualization quickly. You’ll learn how to install Power BI, design effective data models, and build basic dashboards and visualizations to help you make better business decisions. This new edition will also help you bridge the gap between MS Excel and Power BI. Throughout this book, you’ll learn how to obtain data from a variety of sources and clean it using the Power Query Editor. You’ll also start designing data models to navigate and explore relationships within your data and building DAX formulas to make data easier to work with. Visualizing data is a key element of this book, so there’s an emphasis on helping you get to grips with data visualization styles and enhanced digital storytelling. As you progress, you’ll start building your own dataflows, gain an understanding of the Common Data Model, and automate dataflow refreshes to eradicate data cleaning inefficiency. You’ll learn how to administer your organization's Power BI environment so that deployment can be made seamless, data refreshes can run properly, and security can be fully implemented. By the end of this Power BI book, you’ll know how to get the most out of Power BI for better business intelligence.
Table of Contents (13 chapters)
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11
Other Books You May Enjoy
12
Index

DirectQuery

Many of you have likely been trying to envision how you may implement these data imports in your environment. You may have asked yourself questions such as the following:

  • If data imported into Power BI uses an in-memory technology, has my company provided me with a machine that has enough memory to handle this?
  • Am I really going to import my source table with tens of billions of rows into memory?
  • How do I handle the requirement of displaying results in real time from the source?

These are all excellent questions that would have many negative answers if the only way to connect to your data was by importing your source into Power BI. Fortunately, there is another way. Using DirectQuery, Power BI allows you to connect directly to a data source so that no data is imported or copied into Power BI Desktop.

Why is this a good thing? Consider the questions that were asked at the beginning of this section. Since no data is imported to Power BI...

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