Should I increase TEMP tablespace size here ?

Question

Version: 10.2.0.4
Platform : RHEL 5.8
Currently we are running a batch job in a schema. The default temporary tablespace for that schema is TEMP.
But I see that the tablespace is full.
SQL> select file_name, bytes/1024/1024/1024 gb from dba_temp_files where tablespace_name = 'TEMP';
FILE_NAME                                                                 GB
/prd/fdms/oradata_db18/fdmsc1sdb/oradata/ts_temp/temp01.dbf               10
SQL> SELECT     TABLESPACE_NAME, FILE_ID,
        BYTES_USED/1024/1024,
        bytes_free/1024/1024
FROM V$TEMP_SPACE_HEADER where tablespace_name = 'TEMP'  2    3    4  ;
TABLESPACE_NAME                             FILE_ID BYTES_USED/1024/1024 BYTES_FREE/1024/1024
TEMP                                              1                10240          
So, far the application users have not complained and I didn't see any 'unable to extend' error in the alert log yet,  but the above scenario is dangerous. Right? I mean SQL statements with sorting can error out. Right ? Unlike UNDO, with temp tablespace, temp segments cannot be reused. Right ?

Answer 1

Hello,
As said previously, the Sort Segments can be reused, the Views V$SORT_SEGMENT and V$TEMPSEG_USAGE are relevant to monitore the usage of the Temporary Tablespace.
You'll find in the Note below a way to control over time the Temporary Tablespace:
How Can Temporary Segment Usage Be Monitored Over Time? [ID 364417.1]
More over, you may also check for any ORA-01652 in the Alert Log.
But don't worry to much to get a Full Temporary Tablespace, here "Full" doesn't mean "unreusable".
Hope this help.
Best Regards,
Jean-Valentin Lubiez