The Servoy Repository, a set of tables in the database underlying the names server connection 'repository_server' can be both created and upgraded command line. The datamodel structure is versioned, so new version of Servoy might require an upgrade of the repository. 

To upgrade the Servoy Repository, shut down the Servoy Application Server if it's running, open a command line or terminal window and execute the following command in the <servoy>/application_server/ directory:

./servoy_server.sh -upgradeRepository

servoy_server.bat -upgradeRepository

Executing the aforementioned command start the Servoy Application Server and will create or upgrade the table structure required for the Servoy Repository to the version that the Servoy Application Server requires.