ORA-03217: invalid option for alter of TEMPORARY TABLESPACE

Question

Hi all
I have a database with 300 Users approximantely.
Suddenly I was reported about slowly connection and looked to my database. And I saw that Temporary tablespace with name MUVTEMP is 0% used and in it there is no .dbf file
Then I do ls on my data files directory and saw there MUVTEMP01.dbf!
But it's not using it. Then I want to add another .dbf file. It created this file physically but not joined it to my temporary tablespace.
Then I did it with Oracle EM, clicked on "Show SQL" and there was written
ALTER TABLESPACE "MUVTEMP"
ADD
DATAFILE '/home/oracle/OraHome1/oradata/linux/test.dbf' SIZE
5M
I run it from EM it gave this error
ORA-03217: invalid option for alter of TEMPORARY TABLESPACE
Then I run this SQL in sqlplus
ALTER TABLESPACE "MUVTEMP"
ADD
TEMPFILE '/home/oracle/OraHome1/oradata/linux/test.dbf' SIZE
5M
it created file physically, but I can't see this file as temporary tablespace's file. It's not using....
Where is my mistake???
Thanks...

Answer 1

Hi,
try this query:
select s.sid || ',' || s.serial# sid, s.username, u.tablespace, substr(a.sql_text, 1, (instr(a.sql_text, ' ')-1)) sql_text,
  round(((u.blocks*p.value)/1024/1024),2) size_mb
from v$sort_usage u, v$session s, v$sqlarea a, v$parameter p
where s.saddr = u.session_addr
  and a.address (+) = s.sql_address
  and a.hash_value (+) = s.sql_hash_value
  and p.name = 'db_block_size'
group by s.sid || ',' || s.serial#, s.username, substr(a.sql_text, 1, (instr(a.sql_text, ' ')-1)), u.tablespace, round(((u.blocks*p.value)/1024/1024),2);