Last Modified Date: 18 Jul 2018
EnvironmentTableau Desktop 2018.2.1
ResolutionEither the data does not match the Regular Expression string, or the Regular Expression string is incorrect.
For example, if REGEXP_EXTRACT([username], '(e)') returns Null, the [username] field may not contain any records with 'e' in them.
CauseNull is returned when the Regular Expression string does not have a match.
Additional InformationFor assistance on regular expression syntax, see your data source's documentation. For additional information about regular expressions, see the following third party websites:
Thank you for providing your feedback on the effectiveness of the article.
Open new Case
Training and Tutorials