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

Joins


Joins in QlikView are similar to joins in SQL. Joins between two tables always result in one table. With joins, the columns of the two tables are affected. Joins are explicitly made by using inner join, left join, right join, and outer join.

In QlikView, joins work in the following ways:

  • Inner join: Only the matching records in the two tables are stored.

  • Left join: All the records from the first/left table are kept, and only those records from the second table that match a record in the first table are kept.

  • Right join: All the records from the second/right table are kept, and only those records from the first table that match a record in the second table are kept.

  • Outer join or join: Records from both the tables will be stored and, where possible, records will be matched.

    Tip

    Use Joins.qvw to practice different kinds of joins and concatenate options. It is located in your Apps folder.

Join Orders and Order Detail

The Orders and Order Detail tables will be joined because an optimized data...