Updates the database root file to reflect the read-only attribute
    for the storage area it qualifies. Use this qualifier to update
    the root when the read/write or read-only attribute has changed
    since the backup file from which you are restoring has changed.
    This qualifier does not change the attribute of the storage area
    it qualifies; its purpose is to update the database root file
    with corrected information.

    If you do not specify the Read_Only or the Read_Write qualifier,
    the storage areas is restored with the read/write attributes that
    were in effect when the database was backed up.