Book Image

Getting Started with Tableau 2018.x

By : Tristan Guillevin
Book Image

Getting Started with Tableau 2018.x

By: Tristan Guillevin

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 (21 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Free Chapter
1
Catching Up with Tableau 2018
Index

Refresh a Data Source and deal with changes


Data lives and changes. Any analysis tool, such as Tableau, needs to allow users to refresh data and deal with changes as easily as possible. 

Note

In this section, we won't talk about the published Data Source on Tableau Server. The way to refresh or modifying a published Data Source is different and explained inChapter 9, Publish and Interact in Tableau Server.

The following section describes how to refresh a Data Source.

How to refresh a Data Source

Refreshing a Data Source is simple for both Live and Extract Data Sources.

For a Live connection, right-click on the Data Source and click on Refresh. That's it.

For an Extract, clicking on Refresh won't work because the data in the extract file (.hyper) hasn't changed. Remember that when you create an Extract, you create a copy of your dataset in a Hyper file. Even if the data changes in the dataset, the data in the Hyper doesn't. To refresh an Extract, you need to refresh the Hyper file. To do so, right...