Path=cdd-path

    Specifies a data dictionary path into which the database
    definitions be integrated. If you do not specify the Path
    qualifier, RMU Restore uses the CDD$DEFAULT logical name value
    of the user who entered the RMU Restore command.

    If you specify a relative path name, Oracle Rdb appends the
    relative path name you enter to the CDD$DEFAULT value. If the
    cdd-path parameter contains nonalphanumeric characters, you must
    enclose it within quotation marks ("").

    Oracle Rdb ignores the Path qualifier if you use the Nocdd_
    Integrate qualifier or if the data dictionary is not installed
    on your system.