Space not reclaimed afre dropping user

Question

hello all,
OS:- RHEL 5.2
database:- oracle 10.2.0.1
i dropped a user from my database due to lack of space on partition.but it didn't reclaim space in database and keep telling the space space on partition...i tried alter tablespace colesce but same result as it is having multiple datafiles i am unable to know which datafile to resize..
i also purge recyclebin, but no luck, how can i reclaim space on tablespace level???? i also tried resize for database but got
ORA-32773: operation not supported for smallfile tablespace USERSso any suggestion will be appreciable, that user was occupying 4 GB of space and i dropped it, but still unable to reclaim space..how can i do that???
thanks and regards
VD

Answer 1

hello,
actually the tablespace_name is users i put it wrong there and it is generating lot of records....(5185) i cannot post all here.....total size of users tablespace is 50GB.....
actually that was user i dropped and having size of 4 GB
SQL> select segment_name,segment_type,(bytes/1024/1024)MB from dba_segments where tablespace_name='USERS'
  2  and owner='username'';
no rows selectedi have got this script from asktom...can i directly run it on my server??? i think this will resize all datafiles which are candidate for reclaiming space...actually i have multiple datafiles in users tablespace that is the issue i don't know which datafile to resize ......
set verify off
column file_name format a50 word_wrapped
column smallest format 999,990 heading "Smallest|Size|Poss."
column currsize format 999,990 heading "Current|Size"
column savings  format 999,990 heading "Poss.|Savings"
break on report
compute sum of savings on report
column value new_val blksize
select value from v$parameter where name = 'db_block_size'
select file_name,
       ceil( (nvl(hwm,1)*&&blksize)/1024/1024 ) smallest,
       ceil( blocks*&&blksize/1024/1024) currsize,
       ceil( blocks*&&blksize/1024/1024) -
       ceil( (nvl(hwm,1)*&&blksize)/1024/1024 ) savings
from dba_data_files a,
     ( select file_id, max(block_id+blocks-1) hwm
         from dba_extents
        group by file_id ) b
where a.file_id = b.file_id(+)
column cmd format a75 word_wrapped
select 'alter database datafile '''||file_name||''' resize ' ||
       ceil( (nvl(hwm,1)*&&blksize)/1024/1024 )  || 'm;' cmd
from dba_data_files a,
     ( select file_id, max(block_id+blocks-1) hwm
         from dba_extents
        group by file_id ) b
where a.file_id = b.file_id(+)
  and ceil( blocks*&&blksize/1024/1024) -
      ceil( (nvl(hwm,1)*&&blksize)/1024/1024 ) > 0
/ thanks and regards
VD
Edited by: Dixit on Sep 14, 2009 12:06 AM
Edited by: Dixit on Sep 14, 2009 12:07 AM