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QlikView Essentials
QlikView Essentials

QlikView Essentials: Want to solve your Business Intelligence headaches? Learn how QlikView can help, and discover a powerful yet accessible BI solution that lets you harness your data

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QlikView Essentials

Chapter 2. Extract, Transform, and Load

The power of any application lies in its data structure. QlikView can design very useful and functional data models. QlikView can extract data from disparate data sources and associate them to present a single version of the truth. The power of QlikView's ETL (extract, transform, and load) functionality can help organizations in transforming data.

In this chapter, you will learn how to extract data from different sources and transform them to design a data model. This data model will be used in later chapters to create dashboards. This chapter will help you in mastering ETL scripting in QlikView.

In this chapter, we shall learn about:

  • Scripting essentials
  • Building data models by loading data from relational data sources, Excel, and text files
  • Creating calculated fields in the tables
  • Different techniques to resolve synthetic keys
  • Resolving circular references
  • Loading Inline tables
  • Resident load
  • Including files
  • Using If statements

Configuring settings

Before loading data in QlikView, we need to set up the user preferences and document properties:

  1. Open the QlikView desktop. From the File menu, select New.
  2. Save this new file as QlikViewEssentials.qvw into your QlikViewEssentials\Apps folder.
  3. From the Settings menu, select User Preferences. Under the Save tab, make sure the After Reload option is checked.
  4. From the Settings menu, select Document Properties. Under the General tab, check Generate Logfile. This will generate a log file and will help in debugging.
    Configuring settings

Scripting essentials

Scripting is a set of statements or commands that are written using a specific syntax. Script statements are executed to accomplish the desired results. In QlikView, scripts are written in the script editor. A script is written to load/extract data from data source tables and to transform data. Script uses QlikView specific and data source-specific functions. Script editor is invoked by pressing Ctrl + E or using the script editor icon Scripting essentials from the toolbar. Script editor will look like the following:

Scripting essentials

Here are some of the highlights of the script editor:

  • Script statements can be organized by using tabs.
  • The first tab is Main and it is created by default. This tab has certain variables already declared. These variables are set using your operating system settings.
  • At the bottom of the script editor is a set of tabs used for loading data and script generation. Data is loaded from the Data tab and data from the files.
  • The script is executed from left to right and top to bottom...
Left arrow icon Right arrow icon

Key benefits

  • Design interactive dashboards using QlikView to share sharp BI insights
  • Discover how to create effective data models to manage and harness your data with QlikView’s ETL functionality
  • Learn and implement best practices to successfully integrate QlikView within your organization

Description

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.

Who is this book for?

If you recognize the challenges of harnessing data for a modern business this book is for. Maybe you already know a little about QlikView – if you want to learn more, QlikView Essentials is a great way to develop your knowledge and skills.

What you will learn

  • Learn the complete QlikView workflow – from loading data, to visualization and analytics
  • Learn how to Load data from different sources, including QVD files and how to optimize data models for accuracy and precision
  • Discover solutions to common data modeling problems, so you can respond quickly to changing situations
  • Create accessible dashboards and quality data visualizations to share insights effectively
  • Learn how to deploy your BI application for optimal availability
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Publication date, Length, Edition, Language, ISBN-13
Publication date : Jan 22, 2016
Length: 166 pages
Edition : 1st
Language : English
ISBN-13 : 9781784397289
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Product Details

Publication date : Jan 22, 2016
Length: 166 pages
Edition : 1st
Language : English
ISBN-13 : 9781784397289
Category :
Concepts :
Tools :

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Table of Contents

9 Chapters
1. QlikView Fundamentals Chevron down icon Chevron up icon
2. Extract, Transform, and Load Chevron down icon Chevron up icon
3. Optimizing Your Data Model Chevron down icon Chevron up icon
4. Data Modeling Challenges Chevron down icon Chevron up icon
5. Creating Dashboards Chevron down icon Chevron up icon
6. Comparative Analysis Chevron down icon Chevron up icon
7. Securing Your Application Chevron down icon Chevron up icon
8. Application Deployment Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

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Rating distribution
Full star icon Full star icon Full star icon Full star icon Half star icon 4.1
(12 Ratings)
5 star 66.7%
4 star 0%
3 star 16.7%
2 star 8.3%
1 star 8.3%
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Ian Stirk May 19, 2016
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Hi,I have written a detailed chapter-by-chapter review of this book on www DOT i-programmer DOT info, the first and last parts of this review are given here. For my review of all chapters, search i-programmer DOT info for STIRK together with the book's title.This book aims to introduce you to QlikView, covering the whole application lifecycle, how does it fare?QlikView is an increasing popular tool for data visualization. This book is aims to introduce you to the “...basics of QlikView, and then dive into loading data, performing transformations, creating visualizations, and deployment of the application”. The book is relatively small, having around 140 working pages spread over 8 chapters.Below is a chapter-by-chapter exploration of the topics covered.Chapter 1 QlikView FundamentalsThe book opens with a brief overview of the QlikView components, namely: *QlikView Desktop – development tool *QlikView Server – analytic engine *QlikView Publisher – loads data, and distribution serviceDetails are provided on where to download, and how to install a personal edition of QlikView Desktop. This is followed with an overview of QlikView basics (data is held in RAM, associations used to discover table relationships based on common field names, development is via QlikView Desktop).The chapter continues with an outline of the steps in the development of a QlikView application. These steps form the other chapters of the book. The example used throughout the book is based on the well-known Adventure works 2012 database. There’s a brief overview of the user requirements for the example QlikView application, before showing details of the various tables, their columns, and relationships. There’s a brief look at star and snowflake schemas, stating they are particularly amenable to reporting since they require less joins.The chapter ends with details on how to download a QlikViewEssentials zip file from the publisher, this is unzipped, and its files used in the development of the subsequent QlikView application.This chapter provides a useful overview of what QlikView is, its components, and how to install it. The lifecycle of a QlikView application is outlined before introducing the application that will be built in the remainder of the book.This chapter is easy to read, well written, with a good flow, and has plenty of helpful diagrams. These traits apply to the whole of the book....ConclusionThis book aims to introduce you to QlikView, covering the whole application lifecycle – and certainly succeeds. The book is easy to read, well written, has a sharp focus, with lots of helpful diagrams, and an easy flow between chapters. The book is very practical, with plenty of hands-on step-by-step walkthroughs.If you’re new to QlikView, buy this book. Highly recommended.
Amazon Verified review Amazon
sagar Jun 07, 2016
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This book follows the same pattern as Chandraish Qlik blog. Very direct and simple to understand. Step by Step concepts and exercises help in following the chapters easily. Book is very detailed and covers all the topics on QlikView implementation from inception to server deployment.
Amazon Verified review Amazon
Soft.e Bytes Feb 15, 2016
Full star icon Full star icon Full star icon Full star icon Full star icon 5
It took around a week for this book to arrive in India. But the wait was worth it.This book covers all the QlikView topics in detail. It starts with the information a consultant should gather before starting on any QlikView implementation.It explains data modeling and dashboarding concepts with practice exercises.Every chapter starts with essentials section, which explains all the concepts in a nutshell. Book and exercises are easy to follow. Book has a chapter on server deployment which was like a bonus.
Amazon Verified review Amazon
Ettesh Jun 21, 2016
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I loved this book. I subscribed to Author's blog and this book follows the similar pattern.Very direct and easy to understand.
Amazon Verified review Amazon
Amazon Customer Feb 13, 2016
Full star icon Full star icon Full star icon Full star icon Full star icon 5
The Book is great for any one entering into BI arena . I bought it for my wife as she is new in BI and looking at the Ocean of pick and choose it is not easy. The book in comprehensive and covers all important aspects in a very simple language. The writer did a real good job. Though I would have liked the price to be $10 cheaper but it is worth the price.
Amazon Verified review Amazon
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