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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

Live or Extract

When you connect to a file or a server, on the data source workplace, in the top-right corner, you have the option to use a Live or Extract connection, as you can see in the following screenshot:

There is a big difference between these two options, so let's look at them in detail.

Live

A Live connection creates a direct link between the Tableau data source and your data (server or file). It means that, if the data changes, you see the impact in Tableau directly after actualizing the data source, or when you reopen the workbook.

The problem with a Live connection is that you are dependent on the performance of the database. Large text files, big Excel files, or an unoptimized database can be very slow to analyze in Tableau. Also, if you are connected to an online database, you are dependent on the internet connection, and you won't be able to work offline. Every time you use a field from your data source, Tableau sends a query to the database, meaning that if there...

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