How can i check the longest running query ??

Question

Hi ,
I need to find out which query that is taking the longest time ?
how can i check that ?
pls advise
tks & rgds

Answer 1

Current Active Queries:
col sql_text format a50
col machine format a10
col username format a10
col action format a10
set linesize 200
SELECT /*+ ORDERED */
     username
     ,S.LAST_CALL_ET
     ,s.action
     ,S.STATUS
     ,s.sid
     ,s.serial#
     , s.machine
     , X.sql_text
FROM      sys
     .v_$session S
     LEFT OUTER JOIN sys.v_$sqlarea X
     ON s.sql_address = x.address
     AND      s.sql_hash_value = x.hash_value
WHERE      s.type != 'BACKGROUND'
AND s.STATUS = 'ACTIVE'
ORDER BY 2,1
You can add AND s.USERNAME= 'USERNAME' for a particular user
Long Running Queries
col sql_text format a50
col opname format a20
col machine format a10
col username format a10
col action format a10
set linesize 200
select /*+ ORDERED */
     sl.username
     ,sl.opname
     ,sl.start_time
     ,sl.last_update_time
     ,sl.time_remaining
     ,sl.elapsed_seconds
     ,sa.sql_text
from v$sqlarea sa,v$session_longops sl
where sl.sql_hash_value = sa.hash_value
and sl.sql_address = sa.address
/