Cleaning up temporary tablespace

Hi,
I am facing a problem where temporary tablespace of the production database has grown to 23GB.The instance cannot be bounced and there is very little space left for the rest of the database.I want to free up the excess space.I know I can do it by creating a new temp tablespace,assigning it as default and dropping the old one.But I want to know how I can resize the existing temp tablespace.when I try the following command:
alter database datafile '/d02/oradata/<SID>/temp01.dbf' resize 1G;
it gives the following error:
file contains used data beyond requested RESIZE value.
How can I get around the above problem.there is no session using TEMP tablespace.Plz suggest a solution as I really want to know how this can be done.

First of all, You can't resize the temp tablespace datafiles size as once the temp tbs allocate extents, after the operation finishes, oracle won't deallocate them as it keep them for future requirements and usage.
What you can do in your case, as you cant bounce the db, create another temp tablespace and assign it as default temp tbs and drop the old one.
Also, dont keep its datafiles for auto extend and if you see any error message in alter log file like 'unable to extend temp tablespace' then increase the size. If you feel your queries may fail due to this, you can also use resumable option and investigate why does it requred 20+G for temp?
SJH
OCP DBA

Similar Messages

Problem with Temporary Tablespace in 8i

Hello friends,
I have the 8.1.7.4 version, with a 18GB Temporary Tablespace.
An external process (from Datawarehouse tool) is making a query over a 10.000.000 records.
It appeared the error:
SQL error 1652 occurred when accessing table XXX
It's supposed it occurs due to temporary tablespace is full
DWH tool makes different "big" queries.. but.. are the enough to grow up to 18GB???
Any idea?
[It's not possible to change sort_area_size or any other parameter in init.ora]
Apart form this: Which would be the best way to clean this temporary tablespace?
Thanks

Jose, I think you are right and the problem is that Oracle was unable to obtain additional temp tablespace extents for the query since you mention the problem occurred on a query.
The question is was the lack of free temp due to the combination of tasks running at the time or is the plan for the query in question the issue?
If you resubmit the query does the 01652 error re-occur. If it does then I suggest grabbing a copy of the contents of v$sort_usage and resubmitting the query. Monitor the sort usage every 30 seconds, minute, or several minutes depending on how long the query runs before returning the error. This will give you an idea of how much temp space the query wants and maybe why (see following).
Also get the explain plan and see where temp is being used. One query may use multiple allocations of temp space at a time such as one chunk to support hash joins, one to support aggregation, and one to support order by so the total sort space necessary may be a lot more than you would think just based on the result set size.
In the case where the query in question is using too much temp you have to ask if the plan is the issue or if you really need more temp. When the plan is not efficient then converting to using nested loops over hash joins might be one way to eliminate excess temp space usage.
HTH -- Mark D Powell --

Clean the temp tablespace

to clean i drop a temp tablespace and create another with same name..
Have an another way to clean an temporary tablespace?

Hi,
when show full the tablespace i can't resizeDon't worry, see this other thread : Re: can not create table...!
It's better do not to use an autoextend file for temp tbs.
Nicolas.

Cleanup Temporary Tablespace

Our programmer has me increasing the size of our temporary tablespace due to a materialized view he is having trouble with. The error message he is getting says he is running out of temp space, so he has had me create 4 temp spaces on the C drive(temp01,temp02,temp03,temp04) so far. Three with 2000mb each and one with 2500mb.
He now has had me create one temp space on another larger drive with 14000mb. And, he wants me to cleanup the temp spaces on the C drive. Can that be done? How?
Grateful!

If I understand correctly you have 4 TEMP tablespaces temp01,temp02,temp03,temp04 and then you created another. To clean out the old temp, I would first suggest you shink the datafile to something small using the command: alter database datafile '<filename>' resize 50k; Then if you do not want the tablespaces anymore just drop them.
[email protected]

Amount of temporary tablespace size used for index rebuild

Hi All,
I want to know approximate amount of temporary tablespace size used for index rebuild. I need this information to avoid the insufficient temporary tablespace error during the huge index rebuild.
Is there a query or procedure to find it out.
Thank you.

Hi,
While creating the index, the temporary segment is created in the permanent tablespace. So permanent tablespace must have sufficient space.
http://www.oracle-base.com/articles/10g/SpaceObjectTransactionManagement10g.php
http://aprakash.wordpress.com/2010/01/05/numeric-segment-name/
Anand

ORA-00600 Error, when Dropping one temporary tablespace

Hi,
I am using Oracle 10.1.0.2.0 on WinXPP, after I created a new temp tablespace and assigned one user to it as its temp tablespace, then trying to drop the old temp tablespace , I am getting the following Error . Can anybody pl. explain the reason.
Steps I followed as...
SYSTEM@orcl>create temporary tablespace checkup_tmp tempfile 'c:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL \CHECKUP_Tmp.dat' size 500M;
Tablespace created.
SYSTEM@orcl> alter user checkup temporary tablespace checkup_tmp;
User altered.
SYSTEM@orcl> drop tablespace CHECKUP_TEMP including contents;
drop tablespace CHECKUP_TEMP including contents
ERROR at line 1:
ORA-00600: internal error code, arguments: [krf_gen_drop_tablespace-1], [], [],
SYSTEM@orcl> drop tablespace CHECKUP_TEMP ;
drop tablespace CHECKUP_TEMP
ERROR at line 1:
ORA-00600: internal error code, arguments: [krf_gen_drop_tablespace-1], [], [],
Thanks in advance

this is the bug 3984486
consider upgrading.
the workaround seems to flashback the DB...

How do i know if my query using SORT_AREA_SIZE   or temporary tablespace ?

Good Morning Everyone !
My DB version is 10.2.0.1
I have large table exactly 3 million records.
SQL> select count(*) from tab1;
COUNT(*)
   300000
SQL> select * from tab1 order by no DESC;
sorting ... in process
300000 rows selected.
in Terminal 2 : I tried to find sorting details -   ( No rows selected - why ? )
SQL> select USERNAME , USER , TABLESPACE , SQL_ID from v$tempseg_usage ;
no rows selected
SQL> /
no rows selected
When i google i have seen this ;
If Oracle cannot do the sort in memory (SORT_AREA_SIZE initialisation parameter), space will be allocated in a temporary tablespace for doing the sort operation.
REF_LINK : TEMPORARY Tablespaces and TEMPFILES | Oracle FAQ
MY DOUBT QUESTION :   How do i know if my query using SORT_AREA_SIZE or temporary tablespace ?
Thanks in advance.

@ JohnWatson
I have seen some articles from ORA - FAQ. Good.
SQL> select USERNAME , USER , TABLESPACE , SQL_ID from v$tempseg_usage;
USERNAME                       USER   TABLESPACE                      SQL_ID
   SCOTT                               SYS          TEMP                            fh9vqgyd6m0d1
PGA management means that sorting only 300000 rows may well occur in memory
            Is this (3 million rows) - standard value for 10g version ?
Thanks JohnWatson

INCLUDED_IN_DATABASE_BACKUP for temporary tablespace

Hi,
The query output from v$tablespace shows the INCLUDED_IN_DATABASE_BACKUP value for temp tablespace in my db is "YES". The only way to have the value "NO" is to configure rman to exclude tbs. But you can not exclude temporary tablespace. Based on the size of total full backup files, the temp tablespace does not seem to be backup by rman. Is this a bug or is there other way to set this value for temporary tablespace to "NO"? I'm using 9iR2. Thanks.

>...The only way to have the value "NO" is to configure rman to exclude tbs. But you can not exclude temporary tablespace.
RMAN doesn't include the temporary tablespace in the backups.
SQL> select * from v$tablespace;
       TS# NAME                           INC
         0 SYSTEM                         YES
         7 TEST                           YES
         3 USERS                          YES
        4 TEMP YES
         6 UNDO                           YES
RMAN> list backup of tablespace TEMP;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of list command at 01/26/2006 20:04:06
RMAN-06004: ORACLE error from recovery catalog database: RMAN-20202: tablespace not found in the recovery catalog
RMAN-06019: could not translate tablespace name "TEMP"
RMAN> list backup of tablespace UNDO summary;
List of Backups
===============
Key     TY LV S Device Type Completion Time #Pieces #Copies Tag
3125    B 0 A DISK        22-JUL-05       1       1       TAG20050722T102731
3207    B 0 A DISK        24-OCT-05       1       1       TAG20051024T163622
3248    B 1 A DISK        02-NOV-05       1       1       TAG20051102T225318
3360    B F A DISK        23-JAN-06       1       1       TAG20060123T172135Aron

Script for temporary tablespace in 8.1.7.4.0

Hi,
I am working in oracle 8.1.7.4.0 and HP-UX os.I need a shell script which is to do the following tasks,
1. create a new temporary tablespace
2.assign the new temp tablespace to the database user level
3.drop the old temp tablespace
4. then create a temp tablespace with the old name
5. then assign the new temp tablespace to the database user level
6.drop the new temp tablespace
Kindly provide me the script for oracle 8.1.7.4.0
Rgds..

here is one I prepared earlier (just like a TV chef)
set echo on
-- Create a New TEMP TEMP
create temporary tablespace temp2
tempfile 'dir/temp2.dbf' size 5M
autoextend on next 1M maxsize unlimited extent management local uniform size 1M;
-- Make the TEMP2 tablespace temp
alter database default temporary tablespace temp2;
-- Drop the orginal to recreate with new size
drop tablespace temp including contents and datafiles;
CREATE TEMPORARY TABLESPACE TEMP
TEMPFILE 'dir/temp01.dbf' SIZE 100M AUTOEXTEND ON NEXT 100M MAXSIZE 30000M
EXTENT MANAGEMENT LOCAL UNIFORM SIZE 2M;
alter database default temporary tablespace temp;
drop tablespace temp2 including contents and datafiles;

Error : Temporary Tablespace is Empty when doing expdp/impdp

Hi all,
I was doing expdp on my oracle 10.1.0.2.0 DB on Win XP P, though the user is having a default temporary tablespace with a temp file on autoextend enabled, I got the message as...
ORA-25153: Temporary Tablespace is Empty
Then I created a new temporary tablespace for the user with 500M tempfile and autoextend enabled, then expdp went through.
Now I am doing the impdp for the same .dmp file to generate one sqlfile for the DB,
again I am facing the same error message as...
ORA-25153: Temporary Tablespace is Empty
----- PL/SQL Call Stack -----
object line object
handle number name
17FE07EC 13460 package body SYS.KUPW$WORKER
17FE07EC 5810 package body SYS.KUPW$WORKER
17FE07EC 3080 package body SYS.KUPW$WORKER
17FE07EC 3530 package body SYS.KUPW$WORKER
17FE07EC 6395 package body SYS.KUPW$WORKER
17FE07EC 1208 package body SYS.KUPW$WORKER
17ABE058 2 anonymous block
Job "CHECKUP"."SYS_SQL_FILE_FULL_02" stopped due to fatal error at 10:09
The message indicates that...
ORA-25153: Temporary Tablespace is Empty
Cause: An attempt was made to use space in a temporary tablespace with no files.
Action: Add files to the tablespace using ADD TEMPFILE command.
SO my question is every time I do any imp exp have I to add temp file in my temporary tablespace? will it not be cleared on the completion of the job?
Any advice please.

Hi Sabdar,
The result of the query is as...
SQL> SELECT * FROM DATABASE_PROPERTIES where
2 PROPERTY_NAME='DEFAULT_TEMP_TABLESPACE';
PROPERTY_NAME
PROPERTY_VALUE
DESCRIPTION
DEFAULT_TEMP_TABLESPACE
TEMP
Name of default temporary tablespace
So the default temporary tablespace is TEMP which is not having any tempfile as I cloned this DB from the primary DB, but the user I am using for the impdp is 'checkup' and the temporary tablespace for 'checkup' is 'checkup_temp1' which s having tempfile.
SO then why the impdp job is going to server's temporary tablespace instead of user's temporary tablespace.
Is there any way to get whether 'checkup_temp1' tablespace is the default temporary tablespace for 'checkup' or not?
Can I create create the user mentioning default temporary tablespace anyway because it is giving me error as...
SQL> create user suman identified by suman
2 default tablespace checkup_dflt
3 default TEMPORARY TABLESPACE checkup_temp1;
default TEMPORARY TABLESPACE checkup_temp1
ERROR at line 3:
ORA-00921: unexpected end of SQL command
Then I did ...
SQL> create user suman identified by suman
2 default tablespace checkup_dflt
3 TEMPORARY TABLESPACE checkup_temp1;
User created.
Regards

Temporary Tablespace is Empty-Error Exporting

Hi,
Could any one help me in fixing the error in the following text. It is throwing the error when i tried to exp a user from the database using the system privilege.
==========================================================
EXP SYSTEM/SYSTEM@TEMP1 OWNER=CONF GRANTS=Y CONSTRAINTS=Y INDEXES=Y
Connected to: Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
Export done in UTF8 character set and AL16UTF16 NCHAR character set
server uses WE8MSWIN1252 character set (possible charset conversion)
About to export specified users ...
. exporting pre-schema procedural objects and actions
. exporting foreign function library names for user CONF
. exporting PUBLIC type synonyms
. exporting private type synonyms
. exporting object type definitions for user CONF
About to export CONF's objects ...
. exporting database links
. exporting sequence numbers
. exporting cluster definitions
EXP-00056: ORACLE error 25153 encountered
ORA-25153: Temporary Tablespace is Empty
ORA-06512: at "SYS.DBMS_LOB", line 424
ORA-06512: at "SYS.DBMS_METADATA", line 1140
ORA-06512: at line 1
EXP-00000: Export terminated unsuccessfully
==========================================================

See, before attempting a sort, you must add a new tempfile datafile to
the tablespace, for example: this migh work for you :-
alter tablespace temp_ro add tempfile
'/spare/sme81/oradata/jb/temp_ro.dbf' size 10m;
hare krishna
Alok

Using temporary tablespace for sort in select statement without spacifying

how can i use some particular temporary tablespace in select statement for sording without allocating any temporary tablespace to that user

Try to set for the current session the in memory sorting space to 0 before running your query:
SQL> alter session set sort_area_size = 0;The query should use the temporary tablespace.
Message was edited by:
Pierre Forstmann

Shrinking a Locally Managed Temporary Tablespace

So, even thoguh the documentation is pretty clear about how to use this feature, I cannot get it to do what I expect it to do for me.
And that would be shrinking the tempfile ;)
Now lets face it, I have a large tempfile and want to resize it without restarting the database:
C:\Users\Administrator>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.2.0 Production on Di Nov 20 05:49:59 2012
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Release 11.2.0.2.0 - 64bit Production
SQL> select file_name
, ceil(bytes / 1024 / 1024) "size MB"
from dba_temp_files
FILE_NAME size MB
R:\MXVC01\TEMP01.DBF 31,231
SQL> select su.username
, ses.sid
, ses.serial#
, su.tablespace
, ceil((su.blocks * dt.block_size) / 1048576) MB
from v$sort_usage su
, dba_tablespaces dt
, v$session ses
where su.tablespace = dt.tablespace_name
and su.session_addr = ses.saddr
USERNAME SID SERIAL# TABLESPACE MB
VPXADMIN 15 15 TEMP 14
VPXADMIN 17 5 TEMP 1,203
VPXADMIN 17 5 TEMP 1
VPXADMIN 18 3 TEMP 7
VPXADMIN 19 3 TEMP 1
VPXADMIN 144 3 TEMP 1
VUMADMIN 156 2597 TEMP 1
7 rows selected.
Or this one:
SQL> select tablespace_size/1024/1024 "tablespace_size mb"
, allocated_space/1024/1024 "allocated_space mb"
, free_space/1024/1024 "free_space mb"
from dba_temp_free_space
tablespace_size mb allocated_space mb free_space mb
31230,9922 1228,99219 30002
Documetation from here: http://docs.oracle.com/cd/E11882_01/server.112/e25494/tspaces007.htm#ADMIN12353
+"Shrinking a Locally Managed Temporary Tablespace+
+Large sort operations performed by the database may result in a temporary tablespace growing and occupying a considerable amount of disk space. After the sort operation completes, the extra space is not released; it is just marked as free and available for reuse. Therefore, a single large sort operation might result in a large amount of allocated temporary space that remains unused after the sort operation is complete. For this reason, the database enables you to shrink locally managed temporary tablespaces and release unused space.+
+You use the SHRINK SPACE clause of the ALTER TABLESPACE statement to shrink a temporary tablespace, or the SHRINK TEMPFILE clause of the ALTER TABLESPACE statement to shrink a specific tempfile of a temporary tablespace. Shrinking frees as much space as possible while maintaining the other attributes of the tablespace or tempfile. The optional KEEP clause defines a minimum size for the tablespace or tempfile.+
+Shrinking is an online operation, which means that user sessions can continue to allocate sort extents if needed, and already-running queries are not affected.+
+The following example shrinks the locally managed temporary tablespace lmtmp1 to a size of 20M.+
+ALTER TABLESPACE lmtemp1 SHRINK SPACE KEEP 20M;+
+The following example shrinks the tempfile lmtemp02.dbf of the locally managed temporary tablespace lmtmp2. Because the KEEP clause is omitted, the database attempts to shrink the tempfile to the minimum possible size.+
+ALTER TABLESPACE lmtemp2 SHRINK TEMPFILE '/u02/oracle/data/lmtemp02.dbf';"+
OK, lets do it:
SQL> alter tablespace temp shrink tempfile 'R:\MXVC01\TEMP01.DBF';
alter tablespace temp shrink tempfile 'R:\MXVC01\TEMP01.DBF'
ERROR at line 1:
ORA-03214: File Size specified is smaller than minimum required
It seems there is a bug? Should I report it, or is it the expected behaviour?
Now lets try this one:
SQL> alter tablespace temp shrink tempfile 'R:\MXVC01\TEMP01.DBF' keep 2048M;
Tablespace altered.
SQL> select file_name
, ceil(bytes / 1024 / 1024) "size MB"
from dba_temp_files
FILE_NAME size MB
R:\MXVC01\TEMP01.DBF 31,231
So .... this lasts about *10 minutes*, and nothing changes?
It seems there is a bug? Should I report it, or is it the expected behaviour?
Could someone enlighten me, what this SHRINK is actually doing?
Is it worth to report this as bug, if not a software bug it is at least a documentation bug because it doesn't mention under which conditions it is working?
P.S.: OMG the posting looks terrible, who's the one to blame for this forum software where it is not possible to use fixed size fonts, or format paragraphs as code, or what about the fact that the forum software is using default SQLPlus output as META for some graphical lines?
Isn't this the forum for Oracle Database users?
Edited by: Gerrit Haase on 20.11.2012 13:44

So, you are kidding with me? No? Who are you?
How can I block users here? Is there a moderator present at this forum?
Maybe you read my initial post again?
I didn't look at the wrong place.
I reported you for general abuse.
SQL> define
DEFINE _DATE           = "20.11.12" (CHAR)
DEFINE CONNECTIDENTIFIER = "MXVC01" (CHAR)
DEFINE _USER           = "SYS" (CHAR)
DEFINE _PRIVILEGE      = "AS SYSDBA" (CHAR)
DEFINE SQLPLUSRELEASE = "1102000200" (CHAR)
DEFINE _EDITOR         = "Notepad" (CHAR)
DEFINE OVERSION = "Oracle Database 11g Release 11.2.0.2.0 - 64bit Production" (CHAR)
DEFINE ORELEASE = "1102000200" (CHAR)
SQL> SELECT * FROM dba_temp_free_space;
TABLESPACE_NAME TABLESPACE_SIZE ALLOCATED_SPACE FREE_SPACE
TEMP 3,2748E+10 1306517504 3,1443E+10
SQL> select TABLESPACE_SIZE/power(2,20), ALLOCATED_SPACE/power(2,20), FREE_SPACE/power(2,20) from dba_temp_free_space ;
TABLESPACE_SIZE/POWER(2,20) ALLOCATED_SPACE/POWER(2,20) FREE_SPACE/POWER(2,20)
31230,9922 1245,99219 29986
SQL> ALTER TABLESPACE temp SHRINK SPACE;
Tablespace altered.
SQL> select TABLESPACE_SIZE/power(2,20), ALLOCATED_SPACE/power(2,20), FREE_SPACE/power(2,20) from dba_temp_free_space ;
TABLESPACE_SIZE/POWER(2,20) ALLOCATED_SPACE/POWER(2,20) FREE_SPACE/POWER(2,20)
31230,9922 1244,99219 *29986*
R:\mxvc01>dir temp
Volume in drive R is Disk_R
Volume Serial Number is 248B-61D4
Directory of R:\mxvc01
20.11.2012 08:09 32.748.077.056 TEMP01.DBF
1 File(s) 32.748.077.056 bytes
0 Dir(s) 8.259.297.280 bytes free
SQL> alter tablespace temp shrink tempfile 'R:\mxvc01\TEMP01.DBF';
alter tablespace temp shrink tempfile 'R:\mxvc01\TEMP01.DBF'
ERROR at line 1:
ORA-03214: File Size specified is smaller than minimum required
*It clearly says that there is 29986 MB Space FREE and the above shrink space changes nothing and so does shrink tempfile:*
SQL> alter tablespace temp shrink tempfile 'R:\mxvc01\TEMP01.DBF';
alter tablespace temp shrink tempfile 'R:\mxvc01\TEMP01.DBF'
ERROR at line 1:
ORA-03214: File Size specified is smaller than minimum required
SQL> alter tablespace temp shrink tempfile 'R:\mxvc01\TEMP01.DBF' KEEP 20M;
Tablespace altered.
R:\mxvc01>dir temp
Volume in drive R is Disk_R
Volume Serial Number is 248B-61D4
Directory of R:\mxvc01
20.11.2012 08:24 32.748.077.056 TEMP01.DBF
1 File(s) 32.748.077.056 bytes
0 Dir(s) 8.259.280.896 bytes free
*... nothing changes, the tempfile isn't smaller now ...*

Temporary tablespace is not being used

hello all,
we have oracle 10g 10.2.1.0 on windows server 2003 platform (32-bit). we have 24*7 database. we have OLTP with heavy transactions. last night we ran a report which is supposed to fetch more than 2500 rows and query include group by and order by clause.
i have rebuild all indexes on index tablespace, which were previously on users tablespace where my all data resides.
but it is taking too much long to generate report more that 40 minutes (expected 5 minutes) my SGA is set to 1.2 GB shared pool sixe is 500M and db_cache_size=400M. and when i check tablespace status from enterprise manager everytime , i see that temporary tablespace is never being used..it always shows that temporary tablespace usages 0.0 and i allocated 4 GB to temp tablespace and it is also default temporary tablespace.
what else i can do to force oracle to use temporary tablespaces??? it is not using for sorting also...thats why it is taking so long to generating report..
any suggestion would be appreciable..
thanks and regards
VD

vikrant dixit wrote:
we have oracle 10g 10.2.1.0 on windows server 2003 platform (32-bit). we have 24*7 database. we have OLTP with heavy transactions. last night we ran a report which is supposed to fetch more than 2500 rows and query include group by and order by clause.
i have rebuild all indexes on index tablespace, which were previously on users tablespace where my all data resides.
but it is taking too much long to generate report more that 40 minutes (expected 5 minutes) Are you saying that you tried rebuilding all your indexes because the report started to run slowly, or conversely that you rebuilt all the indexes and then the report ran slowly ?
If it's just a report that you could simply re-run, then all you have to do is re-run it and watch exactly where the time goes (you've been told about the 10046 trace already).
If it's a report that ran, and was tuned, regularly in the past then you presumably have the execution plan stored somewhere so you could even check the current execution plan compared to the old one to see if it has changed.
Regards
Jonathan Lewis
http://jonathanlewis.wordpress.com
http://www.jlcomp.demon.co.uk
To post code, statspack/AWR report, execution plans or trace files, start and end the section with the tag {noformat}{noformat} (lowercase, curly brackets, no spaces) so that the text appears in fixed format.
"There's no sense in being precise when you don't even know what you're talking about"
John von Neumann

Temporary tablespaces in Oracle 10g

Hi,
I have created temporary tablespaces in Oracle 10g from the SQL prompt,but when i list the corresponding datafiles from v$datafile there tempfiles are not listed there,why is it so?
Regards,
Cherry

Hi,
Take a look in
1 - DBA_TEMP_FILES :http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96536/ch2398.htm
2 - V$TEMPFILE: http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96536/ch3225.htm
Cheers,
Marcello M.

Cleaning up temporary tablespace

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