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QlikView for Developers

You're reading from   QlikView for Developers Design and build scalable and maintainable BI solutions

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Product type Paperback
Published in Jun 2017
Publisher Packt
ISBN-13 9781786469847
Length 546 pages
Edition 1st Edition
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Authors (2):
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Miguel  Angel Garcia Miguel Angel Garcia
Author Profile Icon Miguel Angel Garcia
Miguel Angel Garcia
Barry Harmsen Barry Harmsen
Author Profile Icon Barry Harmsen
Barry Harmsen
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Toc

Table of Contents (17) Chapters Close

Preface 1. Meet QlikView FREE CHAPTER 2. What's New in QlikView 12? 3. Seeing is Believing 4. Data Sources 5. Data Modeling 6. Styling Up 7. Building Dashboards 8. Scripting 9. Data Modeling Best Practices 10. Basic Data Transformation 11. Advanced Expressions 12. Set Analysis and Point In Time Reporting 13. Advanced Data Transformation 14. More on Visual Design and User Experience 15. Security Index

The magic of Set Analysis


We will now introduce one of the most powerful tools you, as a developer, have at your disposal when creating QlikView documents. We must say upfront that, as with anything, the excessive use of Set Analysis in chart expressions can yield poor performance or low response times. However, we should also know that, when used effectively, it can have a positive impact in both performance and user experience.

In this section, we will cover topics such as when to use Set Analysis, why you should use it, what the correct syntax is, and we will provide common examples and several tips and tricks for maximizing performance as well.

What is it for?

Set Analysis is a great feature in QlikView that lets you, as a developer, take control over what your charts display and allows calculations that wouldn't be possible otherwise, at least not as dynamically. To understand its inner workings, we can compare it to how selections that are made using listboxes work.

With UI selections...

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