Connecting to and Preparing Data
To develop a visualization, you need to have data to work with. Tableau Desktop accepts many data sources, including text, Excel, many types of databases, and Tableau-hosted data sources, to name a few, and offers a range of basic functions. This enables you to have a lot of data flexibility and not have to use a separate ETL tool in many instances to prepare data for your requirements.
In this chapter, you will learn when and how to apply live or extracted data, how to create live data connections and extracts, and how to store those data connections. Then, you will learn how to create joins, unions, and relationships in Tableau and how to apply them. Finally, you will grasp how to change a field name, add an alias, assign geography, and manage data types and properties.
In this chapter, we will cover the following topics:
- Creating live data connections and extracts
- Creating and managing the Tableau data model
- Managing data properties...
