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Published Sep. 10, 2025

SQL Scripts Causing Duplicate Keys

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Liferay Support

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 While using a new instance of the Liferay Portal, some environments may encounter the following error:

ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found

Resolution

This error occurs do to an error in the creation of sample data by the create-*.sql scripts. This results in duplicate keys in the Layout (uuid_, groupId) index.

To avoid this issue:

  1. Start up the portal with an empty database. This will automatically populate the default data correctly.

  2. If this option is not available, use the create-minimal.sql script. This is functioning correctly (however it will not create the sample data).

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