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waiting sessions and the events they await

posted Sep 11, 2010, 5:23 AM by Sachchida Ojha
select  sw.sid  sid, p.spid  spid, s.username username
, s.osuser   osuser, sw.event event, s.machine  machine
, s.program  program, decode(sw.event,'db file sequential read', sw.p3, 'db file scattered read', sw.p3, null) blocks
from    v$session_wait sw,v$session  s, v$process p
where   s.paddr = p.addr
and     event     not in ('pipe get','client message')
and     sw.sid  = s.sid;