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

Chapter 11: Row-Level Security

In the previous chapter, we learned some advanced data modeling techniques such as using aggregations, incremental refresh, implementing a parent-child hierarchy, role-playing dimensions, and calculation groups. In this chapter, we discuss an essential aspect of data modeling, row-level security (RLS). We will cover the following topics:

  • What RLS means in data modeling
  • RLS terminologies
  • RLS implementation flow
  • Common RLS implementation approaches

We try to cover the preceding topics with real-world scenarios, but keep in mind that each Power BI project may have specific requirements, so it is virtually impossible to cover all RLS possibilities and scenarios.

When it comes to Power BI security, many people immediately think it is something related to Power BI administrators, which is correct to some extent. RLS enables the filtering of data within an entire data model, to only show relevant data to the relevant users, so it...