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Extreme DAX

You're reading from Extreme DAX

Product type Book

Published in Jan 2022

Publisher Packt

ISBN-13 9781801078511

Pages 470 pages

Edition 1st Edition

Languages

Concepts

Business Intelligence

Authors (2):

Michiel Rozema

Henk Vlootman

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Table of Contents (17) Chapters

Preface

Part I: Introduction

1.1 DAX in Business Intelligence

1.2 Model Design

1.3 Using DAX

1.4 Context and Filtering

Part II: Business cases

2.1 Security with DAX

2.2 Dynamically Changing Visualizations

2.3 Alternative Calendars

2.4 Working with AutoExist

2.5 Intercompany Business

2.6 Exploring the Future: Forecasting and Future Values

2.7 Inventory Analysis

2.8 Personnel Planning

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Index

Optimizing report performance with AutoExist

When you know how AutoExist works, you can use this knowledge to solve common performance issues in Power BI reports. In this section, we discuss a number of things for you to consider.

Granularity in fact tables

As we discussed in Chapter 1.2, Model Design, the typical structure of a Power BI model consists of fact tables and filter (or dimension) tables. In most real-life cases, multiple fact tables exist in a model. By connecting these to the same filter tables, you can compute aggregate results over these fact tables simultaneously.

Things get a bit more complicated when your fact tables have different granularity. With this, we mean when some facts are gathered on a more detailed level than other facts. Take, for instance, a sales model for a company that sells blocks. Blocks come in different colors and shapes, as well as different sizes, types, and so on.

This model can be found as 2.4 AutoExist - Product Hierarchy...

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Authors (2)

Michiel Rozema

Michiel Rozema is one of the world's top Power BI experts, living in the Netherlands. He holds a master's degree in mathematics and has worked in the IT industry for over 25 years as a consultant and manager. Michiel was the data insight lead at Microsoft Netherlands for 8 years, during which time he launched Power BI in the country. He is the author of two Dutch books on Power Pivot and Power BI. Michiel is one of the founders of the Dutch Power BI user group and the organizer of the Power BI Summer School, and has been a speaker at many conferences on Power BI. He has been awarded the Microsoft MVP award since 2019 and, together with fellow MVP Henk Vlootman, runs the consultancy company Quanto, specialists in Power BI.

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Henk Vlootman

Henk Vlootman is a senior global Power Platform, Power BI, and Excel business consultant. Every year since 2013, Henk has received the Microsoft MVP award for his outstanding expertise and community leadership. Henk is one of founders of the Dutch Power BI user group and the organizer of the Power BI Summer School, and has been a speaker at many conferences on Power BI all over the world. He is also the author of two Excel and two Power Pivot / Power BI books. He started his career in 1992 with his own company, then as an Excel consultant. Nowadays he runs the consultancy company Quanto, specialists in Power BI, together with fellow MVP Michiel Rozema.

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