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

Sorting tables


We will now introduce the Order By statement, which is added to a Load statement and is used to sort an input table based on certain fields. There is one major condition for the Order By statement to work: it must be applied to a Load statement getting data from a Resident table, not from a table file or any other source.

Some databases can receive Order By instructions in the Select query, but in this section we will only deal with Order By statements on the QlikView side.

The Order By statement must receive at least one field name over which the ordering will be performed and, optionally, the sort order (either ascending or descending). If the sort order is not specified along with the field name, the default sort order will be applied, which is ascending.

An example script of an Order By statement at play is:

Load
 Region,
 Date,
 Amount
Resident SalesTable
Order By Date asc;

In this script, we are loading three fields (Region, Date, and Amount) from a previously loaded table...