Changes the secondary database to the primary database, and the previous primary database to the secondary, if possible. Before entering this command, you must check the database definition through COMS Utility to ensure that the TTRAIL is set to create a new file.

The :RDB command has two forms:

:RDB PRIMARY

:RDB SECONDARY

:RDB PRIMARY is only valid when an application is initiated against the secondary database. Security level is Controller, but the command can only be entered as an AX command from the ODT.

:RDB SECONDARY changes the primary database to the secondary database and the previous secondary database into the primary, if possible.