Intelligent extracts
This section will discuss what a Tableau Data Extract (TDE) is as well as how to efficiently construct an extract.
Understanding the Tableau Data Extract
A Tableau Data Extract (TDE) is a proprietary compressed data source created by Tableau Desktop. A TDE can be stored locally and accessed by Tableau to render visualizations. Consider the following points; they make a .tde
file an excellent choice for improved performance:
- A TDE can be quickly generated at an aggregate level:
- See the walkthrough of the Extract Data dialog box.
- A TDE is a columnar store:
- Relational databases typically store data using a Row store methodology. A columnar store records as sequences of columns.
- In the following example, note that Row store is excellent ...
Get Mastering Tableau now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.