Temp tablespace usage coming in Negative values

Hi,
We got the error in our alert.log stating "unable to extend temp segment by 128 in tablespace"
TABLESPACE_NAME FILE_ID BYTES_USED/1024/1024 BYTES_FREE/1024/1024
TEMP1 2 622 878
TEMP1 3 -4826 5326
TEMP1 1 414 2586
TABLESPACE SIZE MB USED MB FREE MB % USED % FREE
TEMP1 4997 -3793 8790 -75.9 % 175.9 %
If we see the above we can see tempusage is showing in negativevalues.
is that a Bug in Oracle 10g.
Please advice
Cheers

According to the following Oracle support note you should drop and re-create your temp file:
V$Temp_space_header.Bytes_used=-133112528896 [ID 467435.1]
HTH -- Mark D Powell --

Similar Messages

Check and identify cause of previous temp tablespace usage

Hi
Our production ERP database is on solaris and on version 9.2.0.8.0. The application tier and database tier are on two separate nodes.
Recently we observed that the temporary tablespace is being consumed more on a particular day. While monitoring the database,we observed the free temp tablespace was less and hence added 10gb space to it. However within 5-6 hours this space was utilised and certain requests/jobs failed due to no space in temp. This happened on 04th December 2012. Though the situation returned to normal post that,we need to find the cause of consumption of temporary tablespace in such large volumes. We are on 9i database and hence tried identifying the queries through statspack report as no views in particular exist for 9i.
We came across many queries which would help us identfy the current temp usage,but in 9i,we didnot find anything which would guide us on the historic temp tablespace usage. Can it be found via statspack? If yes,what exactly to check for in it? Request you to all please advice. Thanks.
Regards
Rdxdba

-- To get historic information for a spesific sid,serial
column temp_mb format 99999999
column sample_time format a25
prompt
prompt DBA_HIST_ACTIVE_SESS_HISTORY
prompt
select sample_time,session_id,session_serial#,sql_id,temp_space_allocated/1024/1024 temp_mb,
temp_space_allocated/1024/1024-lag(temp_space_allocated/1024/1024,1,0) over (order by sample_time) as temp_diff
from dba_hist_active_sess_history
--from v$active_session_history
where
session_id=&1
and session_serial#=&2
order by sample_time asc
prompt
prompt ACTIVE_SESS_HIST
prompt
select sample_time,session_id,session_serial#,sql_id,temp_space_allocated/1024/1024 temp_mb,
temp_space_allocated/1024/1024-lag(temp_space_allocated/1024/1024,1,0) over (order by sample_time) as temp_diff
--from dba_hist_active_sess_history
from v$active_session_history
where
session_id=&1
and session_serial#=&2
order by sample_time asc
=========================================================================
---- For global temp usage info
col sid_serial format a10
col username format a17
col osuser format a15
col spid format 99999
col module format a15
col program format a30
col mb_used format 999999.999
col mb_total format 999999.999
col tablespace format a15
col statements format 999
col hash_value format 99999999999
col sql_text format a50
col service_name format a15
prompt
prompt #####################################################################
prompt #######################LOCAL TEMP USAGE#############################
prompt #####################################################################
prompt
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$tempfile C
WHERE B.ts#= C.ts#
GROUP BY B.name, C.block_size
) D
WHERE A.tablespace_name = D.name
GROUP by A.tablespace_name, D.mb_total;
prompt
prompt #####################################################################
prompt #######################LOCAL TEMP USERS#############################
prompt #####################################################################
prompt
SELECT S.sid || ',' || S.serial# sid_serial, S.username, S.osuser, P.spid,
--S.module,
--P.program,
s.service_name,
SUM (T.blocks) * TBS.block_size / 1024 / 1024 mb_used, T.tablespace,
COUNT(*) statements
FROM v$tempseg_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,
s.service_name,TBS.block_size, T.tablespace
ORDER BY mb_used;
--prompt
--prompt #####################################################################
--prompt #######################LOCAL ACTIVE SQLS ############################
--prompt #####################################################################
--prompt
-- SELECT sysdate "TIME_STAMP", vsu.username, vs.sid, vp.spid, vs.sql_id, vst.sql_text,vsu.segtype, vsu.tablespace,vs.service_name,
-- sum_blocks*dt.block_size/1024/1024 usage_mb
-- FROM
-- SELECT username, sqladdr, sqlhash, sql_id, tablespace, segtype,session_addr,
-- sum(blocks) sum_blocks
-- FROM v$tempseg_usage
--     group by username, sqladdr, sqlhash, sql_id, tablespace, segtype,session_addr
-- ) "VSU",
-- v$sqltext vst,
-- v$session vs,
-- v$process vp,
-- dba_tablespaces dt
-- WHERE vs.sql_id = vst.sql_id
-- AND vsu.session_addr = vs.saddr
-- AND vs.paddr = vp.addr
-- AND vst.piece = 0
-- AND vs.status='ACTIVE'
-- AND dt.tablespace_name = vsu.tablespace
-- order by usage_mb;
--prompt
--prompt #####################################################################
--prompt #######################LOCAL TEMP SQLS##############################
--prompt #####################################################################
--prompt
--SELECT S.sid || ',' || S.serial# sid_serial, S.username, Q.sql_id, Q.sql_text,
--T.blocks * TBS.block_size / 1024 / 1024 mb_used, T.tablespace
--FROM    v$tempseg_usage T, v$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;
--

Temp tablespace usage...

hi,,
how to check the usage of temp tablespace?
thanks,
bicho

Temp used:
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$tempfile C
WHERE B.ts#= C.ts#
GROUP BY B.name, C.block_size
) D
WHERE A.tablespace_name = D.name
GROUP by A.tablespace_name, D.mb_total;
Temp usage per session:
SELECT S.sid || ‘,’ || S.serial# sid_serial, S.username, S.osuser, P.spid, S.module,
P.program, SUM (T.blocks) * TBS.block_size / 1024 / 1024 mb_used, T.tablespace,
COUNT(*) statements
FROM v$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 sid_serial;
Thanks

Temporary tablespace usage is always 0%

Friends,
I have this strange issue. My Oracle 9iR2 database always show temp tablespace usage as 0% no matter how much sorting is going on, it is never used.
select status from dba_temp_files;
=> AVAILABLE
select tablespace_name, status from dba_tablespaces where contents = 'TEMPORARY';
=> TEMP1, ONLINE
All users have TEMP1 as temporary tablespace.
I ran this random query to analyze temp usage.
SELECT * FROM DBA_EXTENTS ORDER BY 1,4,2,3,7,8;
I am using this query to analyze temp usage
http://www.oracle.com/technology/oramag/code/tips2004/110104.html
[re]
SELECT s.sid "SID",s.username "User",s.program "Program", u.tablespace "Tablespace",
u.contents "Contents", u.extents "Extents", u.blocks*8/1024 "Used Space in MB", q.sql_text "SQL TEXT",
a.object "Object", k.bytes/1024/1024 "Temp File Size"
FROM v$session s, v$sort_usage u, v$access a, dba_temp_files k, v$sql q
WHERE s.saddr=u.session_addr
and s.sql_address=q.address
and s.sid=a.sid
and u.tablespace=k.tablespace_name;
Any idea what going on here.
Regards,
Vishal V.

Hi,
===To find out the who is using the temp space===
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;
===== to find out the free space in temp space ===
SQL> select tablespace_name, file_id, bytes_used, bytes_free
2 from v$temp_space_header ;

How to monitor temp tablespace

I server in 11gR2 and 10gR2.
Is there a way to monitor its usage, like, who is using it, how much space a session is using, what are the objects crated, ie. temp tables.
Thanks.

Hi
This might helpful
select TABLESPACE_NAME, BYTES_USED, BYTES_FREE from V$TEMP_SPACE_HEADER;Also checkout the below link.
http://blog.flimatech.com/2010/06/15/how-to-monitor-temp-tablespace-usage/
Cheers
Kanchana

How to find the sessions/user consuming more temp tablespace

Environment details
IBM-AIX 64 bit
Oracle 10.2.0.4.0
Recently we encountered the issue of sudden peak in CPU utilization and temp tablespace usage. We are noticing this issue after Apr CPU 2009 patch and upgrade to 10.2.0.4.
Recently temp space was full and we added 18 GB of space to temp tablespace, within few hours, they are also consumed.
Application team is telling that they did not modify any code. ADDM report suggests most of the recommendations related to SQL tuning only
not sure about the real issue. Can somebody tell me how I can find what are all sessions/user consuming high temp tablespace
Edited by: user1368801 on Sep 1, 2009 5:32 PM

Hi,
Run below query to check if it is used by any session.
select sum(a.BYTES_USED)/1024/1024 used_mb, sum(b.bytes)/1024/1024 total_mb,
sum(a.BYTES_USED)/sum(b.bytes)*100 pct_used
from V$TEMP_EXTENT_POOL a, v$tempfile b
where a.file_id(+) = b.file#
Check who is using it by the below query.
SELECT s.sid,s.serial#,osuser,process,program,s.sql_hash_value,u.extents, u.blocks
FROM v\$session s, v\$sort_usage u
WHERE s.saddr = u.session_addr order by extents,blocks desc
Hope this solves your issue.
Regards
Regards,
Satishbabu Gunukula
Click here to improve RMAN backup Performance using [Block change tracking in Oracle 10g|http://oracleracexpert.blogspot.com/2009/09/block-change-tracking-in-oracle-10g.html]
http://oracleracexpert.blogspot.com

Reasons to use separate temp tablespace for user tablespace

Hi,
I know that guideline says is not use system tablespace for user tables. But need i create for user tablespace separate TEMP teblespace or i can use same TEMP tablespace for all tablespaces?

Hi,
>>But need i create for user tablespace separate TEMP tablespace or i can use same TEMP tablespace for all tablespaces?
You can use one temp tablespace for a database , Temp tablespace usage are for sorting the data.
for more detail you can go with :Creating Tablespaces
HTH

Seeing negative value on tablespace usage?

HI I have a 10.2.0.3 database and I have been relocating some objects into new tablespaces in order to do some consolidation. I am seeing something very starnge that I have never seen before... I rebuilt a table using toad and the table is part of a cluster and when I rebuilt the table the tablespace where the table lives is now showing negative values for the percent used on the tablespace? I ran the same rebuild script again which basically just renames the original table and then extracts the ddl to rebuild the table and also builds the insert statements and reinsertes the data into thew table. That all worked fine and ran without any errors but the tablespace is now showing double to amount of negative space used in the tablespace? Has anyone seen thi9s behavior in working with tables that are part of a cluster.
Thanks.

Hi..
Well can you paste the out of
select tablespace_name,(bytes/1024/1024)MB from dba_free_space where tablespace_name='tbs_name';
and the output of :-
select df.tablespace_name tspace,
df.bytes/(1024*1024) tot_ts_size,
(df.bytes/(1024*1024) -sum(fs.bytes)/(1024*1024)) Used_ts_size,
sum(fs.bytes)/(1024*1024) free_ts_size,
round(sum(fs.bytes)*100/df.bytes) free_pct,
round((df.bytes-sum(fs.bytes))*100/df.bytes) used_pct1
from dba_free_space fs, (select tablespace_name, sum(bytes) bytes from dba_data_files group by tablespace_name ) df
where fs.tablespace_name = df.tablespace_name
group by df.tablespace_name, df.bytes
order by 1Anand
Edited by: Anand... on Aug 6, 2009 12:24 AM

Quaries using temp tablespace

Dear all,
Is there any script which gives the
list of quaries which heavily uses temp tablespace.Because my temp tablespace size is 32 gb , some times usage will go till 28gb , and it will reset to 0,
i need to know what quary it is running when the usage is at 28 gb.
Please help me regard this,
Regards,
Vamsi.

Check with below query.
SELECT
b.tablespace tablespace_name
, a.username username
, a.sid sid
, a.serial# serial_id
, b.contents contents
, b.segtype segtype
, b.extents extents
, b.blocks blocks
, (b.blocks * c.value) bytes
FROM
v$session a
, v$sort_usage b
, (select value from v$parameter
where name = 'db_block_size') c
WHERE
a.saddr = b.session_addr
========= output =======================
Tablespace Name Username SID Serial# Contents Segment Type Extents Blocks Bytes
TEMP SYS 128 9 TEMPORARY LOB_DATA 1 128 1,048,576
SYS 137 1 TEMPORARY DATA 1 128 1,048,576
sum 2 256 2,097,152

Strage in TEMP tablespace

Something starge to me- Temp tablespace in Oracle 10g
SQL> select FILE_NAME,AUTOEXTENSIBLE,BYTES/1024/1024/1024,USER_BYTES/1024/1024/1024 from dba_temp_files;
FILE_NAME AUT BYTES/1024/1024/1024 USER_BYTES/1024/1024/1024
/u01/app/oracle/oradata/ABCD/temp_1.dbf
Why all these values are coming as NULL??
Any idea?

I have added one more Temp file in TEMP tablespace.
/u01/app/oracle/oradata/ABCD/temp_2.dbf 500M
SQL> !ls -ltr /u01/app/oracle/oradata/ABCD/temp_1.dbf
-rw-r----- 1 oracle dba 1048584192 Mar 08 10:30
/u01/app/oracle/oradata/ABCD/temp_1.dbf
Disk space utilization by first Temp file is as above.
But again the strange part is:-
SQL> select FILE_NAME,BYTES/1024/1024/1024,USER_BYTES/1024/1024/1024 from dba_temp_files;
SQL> select FILE_NAME,BYTES/1024/1024,USER_BYTES/1024/1024 from dba_temp_files;
FILE_NAME BYTES/1024/1024 USER_BYTES/1024/1024
/u01/app/oracle/oradata/ABCD/temp_1.dbf
/u01/app/oracle/oradata/ABCD/temp_2.dbf 500 499
It is still not showing space for First temp file. :(
Anyone has any idea?

TEMP tablespace getting full while inserting a CLOB in Trigger

We have a Oracle 10g (10.2.0.4.0) DB on a Solaris 9 box which also runs our J2EE web-service application on Weblogic 8sp6 server.
We get around 220K web-service requests from upstream callers daily to insert data in the main table, say TABLE1, which has daily partitions on a date column. This table has around 21 columns out of which 1 is a CLOB column.
Now this table has an AFTER INSERT trigger which calls a package procedure to insert the same record into another table, say TABLE2.
From Java application insert statement in executed in below format using a weblogic jdbc connection pool :
INSERT INTO TABLE1(COLUMN1, COLUMN2, ........., CLOB_COLUMN,........, COLUMN21) VALUES (:1, :2, :3, :4, :5, :6, :7, :8, :9, :10, :11, :12, :13, :14, :15, :16, :17, :18, :19, :20);
Clob object is prepared in application using ojdbc14.jar.
We are observing a strange issue here. The TEMP tablespace utilization keeps on growing as more and more inserts are executed by application and after ~125K inserts the TEMP tablespace gets full and we start getting ORA-01652 error.
On further analysis we could see that there are only 7-10 session being maintained but as more and more inserts happen TEMP tablespace utilization goes on increasing for each of these sessions.
When we tried with inserting just few records and then watching the session details in v$session_wait then we could see that it is in INACTIVE state and waiting for the event ‘SQL*Net message from client’. This does not seem correct as the session has successfully inserted the data and committed the transaction and we can see the data in the tables as well.
The confusing thing here is when we modify the trigger to pass blank string('' ) instead of the CLOB column to TABLE2 then this issue does not occur. All 200K records are inserted properly and TEMP tablespace utilization also keep always below 1%.
Can you please help us in solving this issue. Is this related to any oracle issue?
Inside the package we have tried using DBMS_COPY statement to copy the CLOB column after insert but still same result.
Code for reference:
Trigger:
=====================================
CREATE OR REPLACE TRIGGER trg
AFTER INSERT OR UPDATE
ON TABLE1
REFERENCING NEW AS NEW OLD AS OLD
FOR EACH ROW
BEGIN
IF (:NEW.date_col > SYSDATE - 2)
THEN
IF (:NEW.cat IN (1001, 1002))
THEN
pkg.process_change
     (:NEW.COLUMN1,
          :NEW.COLUMN2,
          :NEW.CLOB_COLUMN,
FLAG
END IF;
END IF;
END;
=====================================
Package:
=====================================
procedure PKG.Process_change(
p_COLUMN1 number,
p_COLUMN2 varchar2,
p_CLOB_COLUMN clob,
flag boolean
) is
v_watermark pls_integer;
v_type varchar2(1);
begin
if (flag) then
v_type := 'U';
else
v_type := 'I';
end if;
select t_seq.nextval into v_watermark from dual;
insert into TABLE2(
COLUMN1 number,
COLUMN2 varchar2,
CLOB_COLUMN clob,
watermark,
dml_type
)values (
p_COLUMN1 number,
p_COLUMN2 varchar2,
p_CLOB_COLUMN clob,
v_watermark,
v_dml_type
end;
=====================================

My first thought on reading your post is that not only are you using a database version that is now so old it is in extended support and even then not even the most recent patchset for it.
The first thing I would do is move to 11gR2 and if you can't do that at least get to 10.2.0.5 and apply CLOB relevant patches as well.
Same goes for your operating system. Solaris 9 is ancient: So move to 10 which has vastly improved memory management.
To help you further it would be really valuable to know the table layout. For example is this a heap table or an IOT? Is it partitioned? Is this RAC? What size are the CLOBs? Are they stored in-line? Chunk size? etc.
This page should start you down the right road:
http://docs.oracle.com/cd/B19306_01/appdev.102/b14249/adlob_tables.htm#sthref204
But I am also wondering why you would use a trigger to, as you say, "insert the same record into another table." This description is a poster child for "bad design."

Conversion error in Table control for Negative values

hello all,
Iam using table control with 6 columns and in that columns values are coming from Ztable. and out of that one column is of value which is input/output field and having negative value's also.type of that column is DEC.
Now when i run the report dump occurs showing error message as COnversion Error.
I think its because of negative value even the in attributes of that column i had selected With Sign checkbox.
Now when i run the report then if in Ztable negative value is there then i want to display negative value in table control also.
Please suggest me...
<removed_by_moderator>
Thanking you.
Regards.
Edited by: Hemant Baviskar on Sep 10, 2008 3:07 PM
Edited by: Julius Bussche on Sep 10, 2008 1:13 PM

Hemant
Refer to following link:
Table Control : Conversion error
Thanks
Amol Lohade

Tablespace usage report generated with html tags instead of text

Hi ,
We have a unix shell script scheduled to find tablespace usage and sends the report to our mail id.
For the past few weeks(no changes idone in the script) the report is coming with html tags instead of text as below.
</head>
<body>
<p>
<table border='1' width='90%' align='center' summary='Script output'>
<tr>
<th scope="col">
TABLESPACE_NAME
</th>
<th scope="col">
CUR_USE_MB
</th>
<th scope="col">
CUR_SZ_MB
</th>
<th scope="col">
CUR_PRCT_FULL
</th>
<th scope="col">
FREE_SPACE_MB
</th>
<th scope="col">
MAX_SZ_MB
</th>
<th scope="col">
OVERALL_PRCT_FULL
</th>
</tr>
<tr>
<td>
SYSTEM
</td>
<td align="right">
268
</td>
<td align="right">
500
</td>
<td align="right">
54
</td>
Is this any settings issue or anything to be modified in the script.Could you please reply..
Regards,
Bharath.
Edited by: 870384 on Jul 6, 2011 1:17 AM

Hi Sven W,
Please find the sql below that is generating the tablespace usage report. In the staring of the script markup is set to ON and at the end it is set to OFF.Do you suggest any changes to this..?
SET ECHO OFF
SET PAGES 999
SET MARKUP HTML ON SPOOL ON
col tablespace_name format a15 trunc
col cur_use_mb for 999999999
col cur_sz_mb for 999999999
col free_space_mb for 999999999
col max_sz_mb for 999999999
compute sum of cur_use_mb on report
compute sum of cur_sz_mb on report
compute sum of free_space_mb on report
compute sum of max_sz_mb on report
break on report
spool tablespace.html
select tablespace_name,
round(sum(total_mb)-sum(free_mb),2) cur_use_mb,
round(sum(total_mb),2) cur_sz_mb,
round((sum(total_mb)-sum(free_mb))/sum(total_mb)*100) cur_prct_full,
round(sum(max_mb) - (sum(total_mb)-sum(free_mb)),2) free_space_mb,
round(sum(max_mb),2) max_sz_mb,
round((sum(total_mb)-sum(free_mb))/sum(max_mb)*100) overall_prct_full
from (select tablespace_name,sum(bytes)/1024/1024 free_mb,0 total_mb,0 max_mb from DBA_FREE_SPACE group by tablespace_name
union select tablespace_name,0 current_mb,sum(bytes)/1024/1024 total_mb,sum(decode(maxbytes, 0, bytes, maxbytes))/1024/1024 max_mb
from DBA_DATA_FILES group by tablespace_name) a group by tablespace_name;
select owner,segment_name,segment_type,bytes/(1024*1024) size_m
from dba_segments
where tablespace_name = 'SYSTEM' and segment_name='FGA_LOG$' order by size_m desc;
spool off;
SET MARKUP HTML OFF SPOOL OFF

How to remove negative values for non-cumulative amount

Hello
I have a requirement from the user, wherein he needs to see the balance amount from credit and debit without calendar day being a factor. Hence, they do not need a bank passbook kind of scenario.
I kept the balance amount aggregation as sum+last value. It works fine when I keep calendar day in rows. However, removing it shows negative value in the balance amount in case of just debit.
They wish to see 30,000 on 07.12.2014 and 25,000 on 04.02.2015 in Non-cumulative key figure column. This works if I drag 0calday, but doesnt work in this scenario.
Is it possible?

Hi Yasemin
Credit & Debit are inflow and outflow amount key figures. The user want the data somewhat like this:-
GL Account No.
Credit
Debit
Non Cumulative Balance
1
1000
1000
1
500
500
1
100
400
However, as of now, I get this data only when I keep 0calday in rows. If I remove it the data turns into this:-
GL Account No.
Credit
Debit
Non Cumulative Balance
1
1000
1000
1
500
-500
1
100
-100
I also tried suppressing result rows, yet it didnt work. This scenario is sort of like an account passbook debit and credit amount balance report, but they want that amount coming in without the 0calday row.

Showing Postive Values as negative and negative values as negative itself

Hi Experts,
I want to bring using a formula the value in negative always how this can be done pls advise.
For example
{Field 1 - Field 2 } e.g - = 1 here the value 1 is coming as postive and sometimes the same
{Field 1 - Field 2 } e.g - = -2 here the value -2 is coming as negative
Now I want that there should be some formula that in the above scenerio the Positives are made as negative and negative values stays as negative only.
Please advise how this can be achieved.
Regards,
Venky

Hi Venky,
You can add to your formula like:
If {Field 1 - Field 2 } > 0 Then
({Field 1 - Field 2 }) * -1
Else {Field 1 - Field 2 };

Temp tablespace usage coming in Negative values

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