March 2019
Beginner
504 pages
11h 17m
English
There are a few ways to filter in Tableau Prep:
Filtering an input can be efficient because the query that's sent to the data source will return fewer records. To filter an input, select the input step and then click the Filter Values... button on the input pane:

The Add Filter dialog that pops up allows you to write a calculation with a Boolean (true/false) result. Only true values will be retained.
Filtering may also be done within a clean step anywhere in the flow. There are several ways to apply a filter:
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