Book Image

QlikView 11 for Developers

Book Image

QlikView 11 for Developers

Overview of this book

Business Intelligence technologies are a must-have in every business to make informed decisions and keep up-to speed with the ever-evolving markets. QlikView's disruptive technology makes it a key player and leader in the industry; with its flexibility and powerful analytics environment, building QlikView apps can be mastered by both, business users as well as developers. This book will help you learn QlikView Development from a basic to a practitioner level using a step-by-step approach in a practical environment, and apply proven best practices on each topic. Throughout the book, we will build a QlikView app based on real data about Airline Operations that will help "HighCloud Airlines" make informed business decisions and analysis-guided strategies. HighCloud Airlines executives are evaluating if entering the US market is a good strategy and, if so, which line of business should they focus their investments on; they need QlikView to make the best decision. The application will be evolving chapter by chapter, along with your skills, going from a simple proof of concept to creating a Data Model, adding a custom style, building a Dashboard and handling and manipulating the source data via script. We will meet the "HighCloud Airlines" requirement by using many different data visualization objects and time-saving techniques. The whole application uses real data taken from the Bureau of Transportations statistics of the US and encompasses the operations of Airlines both domestic and international. With three years worth of data, you will help HighCloud Airlines discover where people travel the most, which are the Carriers with the most market share, what is the average load factor per airline, which aircraft is the most used to perform flights, which are the busiest airports, and a whole universe of new insights.
Table of Contents (23 chapters)
QlikView 11 for Developers
Credits
Foreword
About the Authors
Acknowledgements
About the Reviewers
www.PacktPub.com
Preface
Index

Hidden script


When QlikView script is being executed, the results of the actions are written to the Script Execution Progress window (and, if enabled, the log file). While this is a very useful feature to see what happened during reload, sometimes you do not want certain things (for example, login credentials) to be visible to everyone. In fact, sometimes you do not even want all developers to have access to the entire script. This is where the hidden script comes into play.

The hidden script is a password protected part of the script. It is always the left-most tab (and cannot be moved), so it is executed before the regular script is reloaded. Anything that is executed within the hidden script is not written to the log.

Note

Logging for the hidden script can be turned on by checking the Show Progress for Hidden Script checkbox on the Security tab of the Document Properties. Note that this will allow others to use the debugger to step through the hidden code. Since this defeats a main point...