Book Image

Expert Data Modeling with Power BI

By : Soheil Bakhshi
Book Image

Expert Data Modeling with Power BI

By: Soheil Bakhshi

Overview of this book

This book is a comprehensive guide to understanding the ins and outs of data modeling and how to create data models using Power BI confidently. You'll learn how to connect data from multiple sources, understand data, define and manage relationships between data, and shape data models to gain deep and detailed insights about your organization. In this book, you'll explore how to use data modeling and navigation techniques to define relationships and create a data model before defining new metrics and performing custom calculations using modeling features. As you advance through the chapters, the book will demonstrate how to create full-fledged data models, enabling you to create efficient data models and simpler DAX code with new data modeling features. With the help of examples, you'll discover how you can solve business challenges by building optimal data models and changing your existing data models to meet evolving business requirements. Finally, you'll learn how to use some new and advanced modeling features to enhance your data models to carry out a wide variety of complex tasks. By the end of this Power BI book, you'll have gained the skills you need to structure data coming from multiple sources in different ways to create optimized data models that support reporting and data analytics.
Table of Contents (18 chapters)
1
Section 1: Data Modeling in Power BI
4
Section 2: Data Preparation in Query Editor
10
Section 3: Data Modeling
13
Section 4: Advanced Data Modeling

Introduction to the Power Query M formula language in Power BI

Power Query is a data preparation technology offering from Microsoft to connect to many different data sources from various technologies to enable businesses to integrate data, transform it, make it available for analysis, and get meaningful insights from it. Not only can Power Query currently connect over a lot of data sources, but it also provides a custom connectors software development kit (SDK) that third parties can use to create their data connectors. Power Query was initially introduced as an Excel add-in but quickly turned into a vital part of the Microsoft data platform for data preparation and data transformation.

Power Query is currently integrated with many Microsoft products such as Dataverse (also known as Common Data Service (CDS)), SQL Server Analysis Services Tabular Models (SSAS Tabular), and Azure Analysis Services (AAS), as well as Power BI and Excel. Therefore, learning about Power Query can help...