Book Image

QlikView for Developers

By : Miguel Angel Garcia, Barry Harmsen
Book Image

QlikView for Developers

By: Miguel Angel Garcia, Barry Harmsen

Overview of this book

QlikView is one of the most flexible and powerful Business Intelligence platforms around. If you want to build data into your organization, build it around QlikView. Don't get caught in the gap between data and knowledge – find out how QlikView can help you unlock insights and data potential with ease. Whether you're new to QlikView or want to get up to speed with the features and functionality of QlikView, this book starts at a basic level and delves more deeply to demonstrate how to make QlikView work for you, and make it meet the needs of your organization. Using a real-world use-case to highlight the extensive impact of effective business analytics, this book might well be your silver bullet for success. A superb hands-on guide to get you started by exploring the fundamentals of QlikView before learning how to successfully implement it, technically and strategically. You'll learn valuable tips, tricks, and insightful information on loading different types of data into QlikView, and how to model it effectively. You will also learn how to write useful scripts for QlikView to handle potentially complex data transformations in a way that is simple and elegant. From ensuring consistency and clarity in your data models, to techniques for managing expressions using variables, this book makes sure that your QlikView projects are organized in a way that's most productive for you and key stakeholders.
Table of Contents (24 chapters)
QlikView for Developers
Credits
About the Authors
Acknowledgements
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
Index

Chapter 12. Set Analysis and Point In Time Reporting

Comparing performance metrics over a period of time is one of the most fundamental tasks expected from any BI solution. There are a few ways to deliver these sort of comparisons in QlikView, but the most flexible and dynamic ones involve the use of Set Analysis. Set Analysis, by itself, is a powerful tool that can be used for not only for Point In Time Reporting, but for many other complex calculations.

In this chapter, we will expand on what we've learned from all of the previous chapters, and introduce the following new concepts:

  • Set Analysis and modified record sets

  • Point In Time Reporting

  • Comparative analysis with alternate states

We will approach these topics with the use of some practical examples. Given the harshness of the syntax we are going to use, and the complexity of the expressions that can be built with Set Analysis, we recommend you to have a lot of patience and dedication to the subject at hand. Even with the best reference...