Here is a recent thread from OTN forums. The question raised is
WTF? whether a hint in the examples section of DBMS_PARALLEL_EXECUTE documentation have to be used or not and why it is there. What do you think about it? Have a look in the documentation and mark your choice in a poll:
PS. In my view it’s a bug. I left a comment in the documentation about it, but didn’t receive any reply yet.