Published: 07 Aug 2019 Last Modified Date: 14 May 2020
Question
How to improve Tableau Prep Builder performance.
Environment
Tableau Prep Builder
Answer
Here are some potential options of improving Tableau Prep Builder performance.
1. Avoid wildcard union of a large amount of Excel / Text files. 2. Use a database as a data source instead of flat files to avoid the use of union. Or, save the data in only one file or a few files.