Temporary Tablespace Space Monitoring

Here are some quick SQL's to monitor the usage of TEMP Tablespace:

Space Usage of TEMP Tablespace:

SELECT A.tablespace_name tablespace, D.mb_total,

SUM (A.used_blocks * D.block_size) / 1024 / 1024 mb_used,

D.mb_total - SUM (A.used_blocks * D.block_size) / 1024 / 1024 mb_free

FROM v$sort_segment A,

(

SELECT B.name, C.block_size, SUM (C.bytes) / 1024 / 1024 mb_total

FROM v$tablespace B, v$tempfile C

WHERE B.ts#= C.ts#

GROUP BY B.name, C.block_size

) D

WHERE A.tablespace_name = D.name

GROUP by A.tablespace_name, D.mb_total;

Temp Space Usage by Session:

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

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

COUNT(*) sort_ops

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,

S.program, TBS.block_size, T.tablespace

ORDER BY sid_serial;

 
Temp Space Usage by Statement:
 

SELECT S.sid || ',' || S.serial# sid_serial, S.username,

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

T.sqladdr address, Q.hash_value, Q.sql_text

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 S.sid;