Joins in QlikView are used to combine data from two data sets into one. Joins in QlikView mean the same as in joins in SQL. Only the column and row values that match the join conditions are shown in the output.

Input Data

Let us consider the following two CSV data files, which are used as input for further illustrations.

Product List:
ProductID,ProductCategory
1,Outdoor Recreation
2,Clothing
3,Costumes & Accessories
4,Athletics
5,Personal Care
6,Hobbies & Creative Arts

ProductSales:
ProductID,ProductCategory,SaleAmount
4,Athletics,1212
5,Personal Care,5211
6,Hobbies & Creative Arts,1021
7,Display Board,2177
8,Game,1145
9,soap,1012
10,Beverages & Tobacco,2514

Inner Join

We load the above input data using the script editor, which is invoked by pressing Control+E. Choose the option Table Files and browse for the Input file. Then we edit the commands in the script to create an inner join between the tables.

Inner join fetches only those rows, which are present in both the tables. In this case, the rows available in both Product List and Product Sales table are fetched. We create a Table Box using the menu Layout → New Sheet Objects → Table Box where we choose all the three fields – ProductID, ProductCategory and SaleAmount to be displayed.

Left Join

Left join involves fetching all the rows from the table in the left and the matching rows from the table in the right.

Load Script

Sales:
LOAD ProductID,
ProductCategory,
SaleAmount
FROM
[C:\Qlikview\data\product_lists.csv]
(txt, codepage is 1252, embedded labels, delimiter is ',', msq);

LEFT JOIN(Sales)

LOAD ProductID,
ProductCategory
FROM
[C:\Qlikview\data\Productsales.csv]
(txt, codepage is 1252, embedded labels, delimiter is ',', msq);

We create a Table Box using the menu Layout → New Sheet Objects → Table Box, where we choose all the three fields − ProductID, ProductCategory and SaleAmount to be displayed.

Right Join

Right join involves fetching all the rows from the table in the right and the matching rows from the table in the left.

Load Script

Sales:
LOAD ProductID,
ProductCategory,
SaleAmount
FROM
[C:\Qlikview\data\product_lists.csv]
(txt, codepage is 1252, embedded labels, delimiter is ',', msq);

RIGHT JOIN(Sales)

LOAD ProductID,
ProductCategory
FROM
[C:\Qlikview\data\Productsales.csv]
(txt, codepage is 1252, embedded labels, delimiter is ',', msq);

We create a Table Box using the menu Layout → New Sheet Objects → Table Box, where we choose all the three fields – ProductID, ProductCategory and SaleAmount to be displayed.

Outer Join

Outer join involves fetching all the rows from the table in the right as well as from the table in the left.

Load Script

Sales:
LOAD ProductID,
ProductCategory,
SaleAmount
FROM
[C:\Qlikview\data\product_lists.csv]
(txt, codepage is 1252, embedded labels, delimiter is ',', msq);

OUTER JOIN(Sales)

LOAD ProductID,
ProductCategory
FROM
[C:\Qlikview\data\Productsales.csv]
(txt, codepage is 1252, embedded labels, delimiter is ',', msq);

We create a Table Box using the menu Layout → New Sheet Objects → Table Box where we choose all the three fields – ProductID, ProductCategory and SaleAmount to be displayed.

So, this brings us to the end of blog. This Tecklearn ‘Concept of Joins in QlikView’ blog helps you with commonly asked questions if you are looking out for a job in QlikView BI. If you wish to learn QlikView and build a career in Business Intelligence domain, then check out our interactive, QlikView Certification Training, that comes with 24*7 support to guide you throughout your learning period. Please find the link for course details:

Qlik View Certification Training

QlikView Certification Training

About the Course

Tecklearn’s QlikView Certification Training will help you become an expert in Data Visualization with QlikView. Learn all the basics and advanced features of QlikView such as data modelling, reports and dashboards, visualization, object formatting, system table etc. Along with this, you will be given hands-on working experience on real-time projects that will help you pass the QlikView certification exam. You also get hands-on experience in QlikView applications.

Why Should you take QlikView Training?

• The average annual pay for a QlikView Professional is $122,000. -PayScale.com.
• Deloitte, Cisco, Qualcomm, Sony, AON & other top Fortune 500 companies use QlikView
• QlikView – A Leader in 2017 Gartner Magic Quadrant for Business Intelligence & Analytics Platforms (For 7th Consecutive Year).

What you will Learn in this Course?

Introduction to QlikView

• Concept of Business Intelligence
• Features and components of QlikView
• Comparison with other BI tools
• Architecture
• Installation & Navigation
• QVS, QVW and .log files
• Sheet Objects
• Dimensions and Expressions
• Various file types and extensions

Various QlikView Products

• Overview of the various QlikView products

Introduction to Data and Scripting

• Structuring the Script
• Create tabs in the scripts, Debugging of scripts
• Hands On

Data Model

• QlikView Data File Types: QVD, QVX
• System fields
• Star schema
• Synthetic Key Tables
• Data Modelling Considerations
• Straight and Pivot Table
• Hands On

Components of Qlik View

• Sheets and Sheet Objects
• The List Box
• The Table Box
• The Multi Box
• The Button & Text Object
• Basic Charts
• Hands On

Set Analysis

• Set analysis
• Working with modifiers, identifiers, operators, example of expressions,
• Indirect set analysis
• YTD & MTD

QlikView Functions, Reports and Charts

• Uses of Expressions
• Chart Properties: Dimensions
• Qlikview Functions
• Adhoc Reports
• Incremental Load using QVD Files
• Bookmarks
• Hands On

Data Analysis

• What-if Analysis
• Comparative Analysis
• Dynamic Reporting or Ad-hoc Reporting
• Document Analyzer

QlikView Security

• QlikView security
• Defining the access controls and levels of access
• Maintaining the access control database

QlikView Administration

• QMC (QlikView Management Console)
• Server Installation & Deployment
• QlikView Project

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