Specifies whether the RBR file includes the data and metadata
    contained in the database (WITH DATA), or the metadata only (WITH
    NODATA). The default is WITH DATA.

    When you specify the WITH NODATA option, the EXPORT statement
    copies metadata from the source database to an RBR file. Use the
    IMPORT statement to generate an empty database whose metadata is
    identical to that of the source database.

    The WITH NODATA option is not compatible with data dictionary
    databases (CDD$DATABASE.RDB). If you attempt to export a
    CDD$DATABASE.RDB database, RDO issues an error message stating
    that the NODATA option is not valid for data dictionary
    databases.