Oracle (R) Enterprise Manager Console Version 9.2.0.1.0 Error?

Question

Hi
I just took over from someone the role of a DBA and I would like to clarify an issue I saw in Oracle (R) Enterprise Manager Console Version 9.2.0.1.0 Production.
My Default Temporary Tablespace, TEMP.DBF is currently sized at 6144 MB, Used size is 6140 MB, 99.93% with full auto extend on.
Automatically extend datafile when full (Auto extend) 20480 K Bytes.
Maximum Size - 8192 K Bytes. (------> Issue to clarify here<------)
I think most probably my ex-staff clicked wrongly and chose "K Bytes". It should be "M Bytes". However, I would like to know how is it possible that OEM console Version 9.2.0.1.0 allows the Maximum Size (8192 K Bytes) to be below 6144 MB? Is this allowed? If so and left uncheck, what will the repercussion be on the TEMP tablespace?
Has anyone ever come across this issue?
Regards
Hahnhahnhahn

Answer 1

See an small example below
"Tablespace Created"
SQL> create temporary tablespace temp_test tempfile 'C:\ORACLE\APP\ORADATA\CKPT\temp_test01.tmp' size 100m autoextend on
next 10m maxsize 200m;
Tablespace created.
SQL>
"check below size, user bytes,maxsize"
TABLESPACE_NAME                FILE_NAME                                                    BYTES/1024/1024 USER_BYTES/1024/1024 MAXBYTES/1024/1024 AUT
TEMP_TEST                      C:\ORACLE\APP\ORADATA\CKPT\TEMP_TEST01.TMP                            "100                      99                200" YES
SQL>
"Now resized to more than maxsize so further maxsize supprssed"
SQL> alter database tempfile 'C:\ORACLE\APP\ORADATA\CKPT\TEMP_TEST01.TMP' resize 250m;
Database altered.
SQL> select tablespace_name,file_name,bytes/1024/1024,user_bytes/1024/1024,maxbytes/1024/1024,autoextensible from dba_temp_files where tablespace_name='TEMP_TEST';
TABLESPACE_NAME                FILE_NAME                                                    BYTES/1024/1024 USER_BYTES/1024/1024 MAXBYTES/1024/1024 AUT
TEMP_TEST                      C:\ORACLE\APP\ORADATA\CKPT\TEMP_TEST01.TMP                            "250                     249                200 YES"
SQL>
Now Bytes is more than Maxsize , its common behaviour of oracle database. When you resize tempfile, you have to again mention what is the maxsize.