Waits count for each event type

set linesize 200

select /*+ ordered */
  substr(n.name, 1, 29)  event,
  t0,
  t1,
  t2,
  t3,
  t4,
  t5,
  t6,
  t7,
  t8,
  t9
from
  sys.v_$event_name  n,
  (select event e0, count(*)  t0 from sys.v_$session_wait group by event),
  (select event e1, count(*)  t1 from sys.v_$session_wait group by event),
  (select event e2, count(*)  t2 from sys.v_$session_wait group by event),
  (select event e3, count(*)  t3 from sys.v_$session_wait group by event),
  (select event e4, count(*)  t4 from sys.v_$session_wait group by event),
  (select event e5, count(*)  t5 from sys.v_$session_wait group by event),
  (select event e6, count(*)  t6 from sys.v_$session_wait group by event),
  (select event e7, count(*)  t7 from sys.v_$session_wait group by event),
  (select event e8, count(*)  t8 from sys.v_$session_wait group by event),
  (select event e9, count(*)  t9 from sys.v_$session_wait group by event)
where
  n.name != 'Null event' and
  n.name != 'null event' and
  n.name != 'rdbms ipc message' and
  n.name != 'pipe get' and
  n.name != 'virtual circuit status' and
  n.name not like '%timer%' and
  n.name not like '%slave wait' and
  n.name not like 'SQL*Net message from %' and
  n.name not like 'io done' and
  n.name != 'queue messages' and
  e0 (+) = n.name and
  e1 (+) = n.name and
  e2 (+) = n.name and
  e3 (+) = n.name and
  e4 (+) = n.name and
  e5 (+) = n.name and
  e6 (+) = n.name and
  e7 (+) = n.name and
  e8 (+) = n.name and
  e9 (+) = n.name and
  nvl(t0, 0) + nvl(t1, 0) + nvl(t2, 0) + nvl(t3, 0) + nvl(t4, 0) +
  nvl(t5, 0) + nvl(t6, 0) + nvl(t7, 0) + nvl(t8, 0) + nvl(t9, 0) > 0
order by
  nvl(t0, 0) + nvl(t1, 0) + nvl(t2, 0) + nvl(t3, 0) + nvl(t4, 0) +
  nvl(t5, 0) + nvl(t6, 0) + nvl(t7, 0) + nvl(t8, 0) + nvl(t9, 0)
/