Temp Tablespace Usage Monitoring

Temp space usage per session

SET pagesize 10000

SET linesize 133

COL tablespace format a15 heading 'Tablespace Name'

COL segfile# format 9,999 heading 'File|ID'

COL segblk# format 999,999,999 heading 'Block|ID'

COL blocks format 999,999,999 heading 'Blocks'

COL username format a15

SELECT   b.TABLESPACE, b.segfile#, b.segblk#, b.blocks, a.SID, a.serial#,

         a.username, a.osuser, a.status

    FROM v$session a, v$sort_usage b

   WHERE a.saddr = b.session_addr

ORDER BY b.TABLESPACE, b.segfile#, b.segblk#, b.blocks;

Temp segment usage per session:

 SELECT S.sid || ',' || S.serial# sid_serial, S.username, S.osuser, P.spid, S.module,

P.program, SUM (T.blocks) * TBS.block_size / 1024 / 1024 mb_used, T.tablespace,

COUNT(*) statements

FROM v$sort_usage T, v$session S, dba_tablespaces TBS, v$process P

WHERE T.session_addr = S.saddr

AND S.paddr = P.addr

AND T.tablespace = TBS.tablespace_name

GROUP BY S.sid, S.serial#, S.username, S.osuser, P.spid, S.module,

P.program, TBS.block_size, T.tablespace

ORDER BY mb_used;

Identify temp segment usages per statement:

SELECT S.sid || ',' || S.serial# sid_serial, S.username, Q.hash_value, Q.sql_text,

T.blocks * TBS.block_size / 1024 / 1024 mb_used, T.tablespace

FROM v$sort_usage T, v$session S, v$sqlarea Q, dba_tablespaces TBS

WHERE T.session_addr = S.saddr

AND T.sqladdr = Q.address

AND T.tablespace = TBS.tablespace_name

ORDER BY mb_used;