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Getting Started with Tableau 2018.x

Getting Started with Tableau 2018.x

By : Guillevin, Pires
4 (3)
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Getting Started with Tableau 2018.x

Getting Started with Tableau 2018.x

4 (3)
By: Guillevin, Pires

Overview of this book

Tableau is one of the leading business intelligence tools used worldwide, in organizations of every scale. In its latest release, Tableau 2018 promises richer and more useful features related to visual analytics, reporting, dashboarding, and a host of other data visualization aspects. Getting Started with Tableau 2018.x will get you up and running with these features. The book starts with all the new functionalities of the different Tableau 2018 versions, along with concrete examples of how to use them. However, if you're new to Tableau, don't worry! The rest of the book will guide you through each major aspect of Tableau with examples. You'll learn how to connect to data, build a data source, visualize your data, build a dashboard, and share it online. In the final chapters, you'll also learn advanced techniques such as creating a cross-database join, data blending, and more. By the end of the book, you will have a firm understanding of how to effectively use Tableau to create quick, cost-effective, and business-efficient business intelligence solutions.
Table of Contents (16 chapters)
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1
Catching Up with Tableau 2018

Data-blending


Data-blending is a way of using different fields from different Data Sources in one Worksheet. There is always a primary data source (the tick icon in blue) and one or multiple secondary data sources (the tick mark in orange). As for joins, one or multiple common fields are needed to create the relationships between the data sources. 

Unlike joins, data-blending is often used to add new Measures. Fields coming from the secondary data sources are always aggregated. However, they are only aggregated using the common fields, so there is no data duplication. Finally, data-blending can rapidly have a negative impact on performance.

Note

The more different values there are in the common Fields, the bigger the impact on performance. 

Fields with the same name can automatically be used to create the relationship. In the secondary data sources, you can recognize the fields that can be used for the relationship with the small link icon next to their name. You can click on the link icon to...

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