UNDO and TEMP usage by a schema

Question

Hi,
How can I findout UNDO and TEMP space usage by a schema? do we have any tables for this?
If I want to get UNDO,TEMP space or any other resource used by a schema for 24 Hours period,can get this info.
Can you please suggest the procedure to know the high resource consumption application?
I am using Oracle 9.2.0.4 in SUN cluster environment.
Thanks very much in advance.I apreciate your help
Thanks
Thanks

Answer 1

Hi,
About UNDO, you can check the status of the undo segment currently used by active transactions.
select s.username, t.xidusn, t.ubafil, t.ubablk, t.used_ublk
from v$session s, v$transaction t
where s.saddr = t.ses_addr;About others user session's information, you can try this below:
select osuser,
       machine,
       username,
       segment_name,
       sa.sql_text
from   v$session s,
       v$transaction t,
       dba_rollback_segs r,
       v$sqlarea sa
where  s.taddr = t.addr
and    t.xidusn = r.segment_id(+)
and    s.sql_address = sa.address(+)
order by osuserAbout TEMP:
To monitor tempspace eating by sessionSELECT a.sid,b.BLOCKS FROM v$session a , v$sort_usage b
WHERE a.saddr=b.SESSION_ADDR;
To monitor tempspace eating by SQLSELECT a.sql_text,b.BLOCKS FROM v$sql a , v$sort_usage b
WHERE a.sql_id=b.sql_id;Cheers