Book Image

Extreme DAX

By : Michiel Rozema, Henk Vlootman
Book Image

Extreme DAX

By: Michiel Rozema, Henk Vlootman

Overview of this book

This book helps business analysts generate powerful and sophisticated analyses from their data using DAX and get the most out of Microsoft Business Intelligence tools. Extreme DAX will first teach you the principles of business intelligence, good model design, and how DAX fits into it all. Then, you’ll launch into detailed examples of DAX in real-world business scenarios such as inventory calculations, forecasting, intercompany business, and data security. At each step, senior DAX experts will walk you through the subtleties involved in working with Power BI models and common mistakes to look out for as you build advanced data aggregations. You’ll deepen your understanding of DAX functions, filters, and measures, and how and when they can be used to derive effective insights. You’ll also be provided with PBIX files for each chapter, so that you can follow along and explore in your own time.
Table of Contents (17 chapters)
Free Chapter
1
Part I: Introduction
6
Part II: Business cases
15
Other Books You May Enjoy
16
Index

The Power BI model

The analysis in this chapter is based on the model below.

You can download the Power BI model for this chapter, 2.8 Personnel Planning.pbix, from this link: https://github.com/PacktPublishing/Extreme-DAX/tree/main/Chapter2.8.

Figure 2.8.1: Power BI model diagram for personnel planning

The model contains two main fact tables:

  • fProjectSales contains projects sold. The primary information in the table is the project type, which is the main characteristic of a project. The table also contains a Number column, which denotes the size of the project in terms of the project type. For example, a project can have type A and number 3, meaning that the project is comparable to three typical type A projects. The table contains the project budget as well.
  • fFTE is a fact table with information about project types. It is an atypical fact table, as it does not contain any data that is strictly time-related. Instead, for each project...