Book Image

Microsoft Power BI Quick Start Guide - Second Edition

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

Microsoft Power BI Quick Start Guide - Second Edition

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

Overview of this book

This revised edition has been fully updated to reflect the latest enhancements to Power BI. It includes a new chapter dedicated to dataflow, and covers all the essential concepts such as installation, designing effective data models, as well as building basic dashboards and visualizations to help you and your organization make better business decisions. You’ll learn how to obtain data from a variety of sources and clean it using Power BI Query Editor. You’ll then find out how you can design your data model to navigate and explore relationships within it and build DAX formulas to make your data easier to work with. Visualizing your data is a key element in this book, and you’ll get to grips rapidly with data visualization styles and enhanced digital storytelling techniques. In addition, you will acquire the skills to build your own dataflows, understand the Common Data Model, and automate data flow refreshes to eradicate data cleansing inefficiency. This guide will help you understand 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 have a better understanding of how to get the most out of Power BI to perform effective business intelligence.
Table of Contents (12 chapters)
10
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11
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...