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

Filtering rows

The other common transformation is Filtering rows. There are many use cases where we may want to restrict the results by specific values. For instance, we may want to filter the Product table to show the products with a Status of Current. Filtering the rows based on columns' values is very simple. We have to select the desired column, then click the arrow down button () from the column's caption, and select the values we want to use for filtering the rows. This is shown in the following screenshot:

Figure 5.26 – Filtering rows

While this is a straightforward step to take, not all filtering use cases are simple, such as when we do not have specific values to filter the rows upon. However, we have a list that the business provided, specifying the values to use in the filters. Let's look at this with a scenario.

The business provides a list of Approved Product Subcategories every season in Excel format. We need to filter...