Displays information on the current wait states for all active database sessions

SET LINESIZE 250  
SET PAGESIZE 1000  
  
COLUMN username FORMAT A15  
COLUMN osuser FORMAT A15  
COLUMN sid FORMAT 99999  
COLUMN serial# FORMAT 9999999  
COLUMN wait_class FORMAT A15  
COLUMN state FORMAT A19  
COLUMN logon_time FORMAT A20  
  
SELECT NVL(a.username, \'(oracle)\') AS username,  
       a.osuser,  
       a.sid,  
       a.serial#,  
       d.spid AS process_id,  
       a.wait_class,  
       a.seconds_in_wait,  
       a.state,  
       a.blocking_session,  
       a.blocking_session_status,  
       a.module,  
       TO_CHAR(a.logon_Time,\'DD-MON-YYYY HH24:MI:SS\') AS logon_time  
FROM   v$session a,  
       v$process d  
WHERE  a.paddr  = d.addr  
AND    a.status = \'ACTIVE\'  
ORDER BY 1,2;  
  
SET PAGESIZE 14