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 business case and model

In the remainder of this chapter, we look at a portfolio of real estate properties. Different properties may have different life cycle durations. Each property has:

  • An investment in year 0, cash flows, and a residual value.
  • Cash flows with a recurring pattern during the life span of the property, either positive (income) or negative (expenses).
  • Positive or negative cash flows with an irregular pattern, like maintenance.

You can download this model, 2.6 Exploring the future.pbix, from https://github.com/PacktPublishing/Extreme-DAX/tree/main/Chapter2.6.

The model contains three fact tables: fPosCashFlows for positive recurring cash flows, fNegCashFlows for negative recurring cash flows, and fIrregular for irregular cash flows.

There can be many different cash flow drivers; to be able to analyze them separately, there is a filter table with the type of cash flow for each fact table:

Figure 2.6.4...