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)
Section 1: Data Modeling in Power BI
Section 2: Data Preparation in Query Editor
Section 3: Data Modeling
Section 4: Advanced Data Modeling


In this chapter, we learned to work with the most common data sources supported in Power BI, such as folders, CSV, Excel, Power BI datasets, Power BI dataflows, SQL Server SSAS, and OData feed, with some challenging real-world scenarios. We also went through data source certifications and discussed why it is essential to know which data source certification level we are dealing with. We then looked at connection modes, storage modes, and dataset modes, and at how different they are. It is worthwhile emphasizing the importance of understanding different connection modes, storage modes, and dataset modes as they will directly affect our data modeling and overall Power BI architecture.

In the next chapter, we look at common data preparation steps in the Power Query Editor, along with real-world scenarios.