Book Image

Microsoft Power BI Quick Start Guide - Third Edition

By : Devin Knight, Erin Ostrowsky, Mitchell Pearson, Bradley Schacht
Book Image

Microsoft Power BI Quick Start Guide - Third Edition

By: Devin Knight, Erin Ostrowsky, Mitchell Pearson, Bradley 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)
11
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12
Index

Working with complex relationships

There are many complex scenarios that need to be addressed when building a data model, and Power BI is no different in this regard. In this section, you will learn how to handle many-to-many relationships and role-playing tables in Power BI.

Many-to-many relationships

Before we discuss how to build a relationship between two tables that have a many-to-many relationship, let's discuss specifically what a many-to-many relationship is. Basically a many-to-many relationship is when multiple rows in one table are associated with multiple rows in another table. An example of a many-to-many relationship can be observed in the relationship between products and customers. A product can be sold to many customers, likewise, a customer can purchase many products. This relationship between products and customers is a many-to-many relationship. In a one-to-many relationship, a relationship can be created directly between the two tables. However, in a many...