query for waiters queue

  • From: John D Parker <orclwzrd@xxxxxxxxx>
  • To: oracle-l <oracle-l@xxxxxxxxxxxxx>
  • Date: Wed, 9 Jan 2013 08:27:14 -0800 (PST)

So I have all the classic queries for finding blockers and waiters. I keep 
running into the situation where I have one holder and 600 waiters. I clear off 
the blocker and then another one picks up and blocks. Is there a query that 
will give the current waiter queue? I see that Jonathan talks about a trace 
event to create a trace file but that's not particularly useful in my 
situation. Anyone have a query for this?
Thanks in advance!

John

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