What SQL is currently running

set linesize 2000
column username format a20
column machine format a20
column stmt format a80

SELECT nvl(ses.username,'ORACLE PROC')||' ('||ses.sid||')' USERNAME,
       SID,   
       MACHINE, 
       REPLACE(SQL.SQL_TEXT,CHR(10),'') STMT, 
      ltrim(to_char(floor(SES.LAST_CALL_ET/3600), '09')) || ':'
       || ltrim(to_char(floor(mod(SES.LAST_CALL_ET, 3600)/60), '09')) || ':'
       || ltrim(to_char(mod(SES.LAST_CALL_ET, 60), '09'))    RUNT 
  FROM V$SESSION SES,   
       V$SQLtext_with_newlines SQL 
 where SES.STATUS = 'ACTIVE'
   and SES.USERNAME is not null
   and SES.SQL_ADDRESS    = SQL.ADDRESS 
   and SES.SQL_HASH_VALUE = SQL.HASH_VALUE 
   and Ses.AUDSID <> userenv('SESSIONID') 
 order by runt desc, 1,sql.piece;

select x.sid
      ,x.serial#
      ,x.username
      ,x.sql_id
      ,x.sql_child_number
      ,optimizer_mode
      ,hash_value
      ,address
      ,sql_text
from   v$sqlarea sqlarea
      ,v$session x
where  x.sql_hash_value = sqlarea.hash_value
and    x.sql_address    = sqlarea.address
and    x.username       is not null;

select session.sid,
sql_text
from v$sqltext sqltext, v$session sesion
where sesion.sql_hash_value = sqltext.hash_value
and session.sql_address = sqltext.address
and session.username is not null
order by sqltext.piece;

Undo corruption – Needs Recovery

I had a problem the other day with a missing UNDO tablespace.  I created a new one, however, the segments in the old tablespace were set to NEEDS RECOVERY.  Do not attempt this on a production database.  If you have the same problem, even on a test instance, you should contact Oracle Support.

DO NOT TRY THIS AT “HOME” : http://forums.oracle.com/forums/thread.jspa?threadID=698075