Specifies whether the RDB file created by the IMPORT statement
    includes the data and metadata contained in the database, or the
    metadata only. DATA is the default.

    When you specify the NODATA option, you import the metadata that
    defines a database from an RBR file and exclude the data.

    The NODATA option is not compatible with data dictionary
    databases (CDD$DATABASE.RDB). An RBR file, created by an EXPORT
    statement with the DATA option (the default) and generated
    from a CDD$DATABASE.RDB file, cannot be used with the NODATA
    option to the IMPORT statement. RDO will issue an error message
    stating that the NODATA option is not valid for data dictionary
    databases.