Derby is an unsupported content store database for TCR
Supported databases for a TCR-bundled Cognos BI content store database
The default content store database that is used by Cognos BI (Business Intelligence) 8.4.1+ bundled by TCR (Tivoli Common Reporting) 2.1+ is embedded Derby 10.1. While this database is suitable for demonstration purposes, it is not to be used as the content store database in a production environment.
The following URL shows the list of supported databases for the content store:
This URL hosted on SMC is a PDF document that provides details of migrating a Derby content store to an enterprise database:
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