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Getting Started with Tableau 2019.2

Getting Started with Tableau 2019.2

By : Tristan Guillevin
5 (2)
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Getting Started with Tableau 2019.2

Getting Started with Tableau 2019.2

5 (2)
By: Tristan Guillevin

Overview of this book

Tableau is one of the leading data visualization tools and is regularly updated with new functionalities and features. The latest release, Tableau 2019.2, promises new and advanced features related to visual analytics, reporting, dashboarding, and a host of other data visualization aspects. Getting Started with Tableau 2019.2 will get you up to speed with these additional functionalities. The book starts by highlighting the new functionalities of Tableau 2019.2, providing concrete examples of how to use them. However, if you're new to Tableau, you won't have to worry as the book also covers the major aspects of Tableau with relevant examples. You'll learn how to connect to data, build a data source, visualize your data, build a dashboard, and even share data online. In the concluding chapters, you'll delve into advanced techniques such as creating a cross-database join and data blending. By the end of this book, you will be able to use Tableau effectively to create quick, cost-effective, and business-efficient Business Intelligence (BI) solutions.
Table of Contents (16 chapters)
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15
Index

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 more 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 between the two data sources, so there is no data duplication. However, data blending can rapidly have a negative impact on performance.

Fields with the same name can automatically be used to create a 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 enable or disable them. For example, in the following screenshot, both Order...

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