/DATABASE
       /DIRECTORY_TREE

    Controls whether the information presented is gathered from the
    queue cache database, /DATABASE, or by looking at the actual
    directory tree containing the channel queues, /DIRECTORY_TREE.

    When neither /DATABASE nor /DIRECTORY_TREE is specified, then the
    "view" selected with the VIEW command will be used. If no VIEW
    command has been issued, then /DIRECTORY_TREE is assumed.