GSM-45550
Unlike MODIFY SERVICE, this does not change the underlying configuration.  This temporarily relocates a global service to run on another database.
If -force is not specified, then global service must be started on old database and not running on new database prior to command execution.
        
        If -force is not specified, then global service must be started on old database and not running on new database prior to command execution.
Cause
GDSCTL help message.