Book Image

QlikView Essentials

By : Chandraish Sinha
Book Image

QlikView Essentials

By: Chandraish Sinha

Overview of this book

This guide demonstrates just how easy it is to get started with QlikView and create your own BI application. Featuring an introduction to its core features before exploring how to load data and model it, you’ll soon become more confident that you can take full advantage of QlikView’s capabilities.. You will also learn how to use QVD files with QlikView – and how they offer a simpler way of handling data. After digging deeper into data handling, as you learn how to use mapping tables and create a master calendar, you’ll then find out how to get the most from QlikView’s visualization features – vital if you are to use your data insights effectively. From accessible and user friendly dashboards to strategies and best practices for subjecting data to further analysis, you can be confident that you’ll be prepared to get the most out of your data with QlikView. With details on how to finally secure your application and deploy it for a successful integration in your organization, QlikView Essentials underlines exactly why QlikView is becoming more and more popular for businesses that understand the value of data.
Table of Contents (15 chapters)
QlikView Essentials
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Concatenation


Another way to optimize your data model in QlikView is through concatenation.

Concatenation is a way to combine or merge tables. It is similar to Union All in SQL. It appends rows from one table to another. The result of concatenation between two tables (Table1 and Table2, for example) is that a new table contains the sum of the numbers of records in Table1 and Table2. Concatenate is used when you have two fact tables in your data model. Two fact tables are not good for your data model. You can combine them using concatenate or link tables. Link tables are explained in the next chapter.

Concatenate is also useful when you have to combine two tables with similar structures. Say, for example, your organization has an Employee table that stores employee data. Your organization buys another company and now wants to merge the details of the employees of this new company with the existing Employee table.

Let's explore different concatenation options:

  • Automatic concatenation: If the...