Send feedback Cloud Dataprep by Trifacta Documentation Docs Boolean Data Type The Boolean data type expresses true or false values.Supported Values: true / false True / False yes / no Yes / No y / n Y / N on / off 1 / 0 Was this page helpful? Let us know how we did: Send feedback Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated May 16, 2019.