How to drop Users DBF file in oracle 11g?

Hi All
I dropped the user and want to free the table space(To import another user(Which has more than 10 GB of record).
the below is my query which i used to import the data and schema
impdp system/test DIRECTORY=dump_dir DUMPFILE=exp_test.dmp FULL=Y LOGFILE=import_test.log REMAP_TABLESPACE=TEST_DATA:USERS
After dropping my user i checked into the folder C:\oradata\orcl and i found two files USERS01.DBF(21.1GB,its 21.1 gb because i tried to cretae an another schema nd i got stuc up with low disk space.) and TEMP01.DBF(1.66GB).
I tried to drop USERS tablespace and i could nt able to do it.
Can any one help me to reduce the size of both two files?
Thanks & Regards
Vijay
Edited by: Vijayamurugan on Jun 15, 2011 8:22 AM

bobonacus wrote:
shutdown immediate
startup nomount
alter database mount;
why not just 'startup mount'?? Why the two-step?
alter database rename file
'e:\oracle\oradata\orcl\indx01.dbf',
'e:\oracle\oradata\orcl\rbs01.dbf',
'e:\oracle\oradata\orcl\system01.dbf',
'e:\oracle\oradata\orcl\temp01.dbf',
'e:\oracle\oradata\orcl\tools01.dbf',
'e:\oracle\oradata\orcl\users01.dbf',
'e:\oracle\oradata\orcl\file1.dbf',
'e:\oracle\oradata\orcl\file2.dbf'
to
'd:\oracle\oradata\orcl\indx01.dbf',
'd:\oracle\oradata\orcl\rbs01.dbf',
'd:\oracle\oradata\orcl\system01.dbf',
'd:\oracle\oradata\orcl\temp01.dbf',
'd:\oracle\oradata\orcl\tools01.dbf',
'd:\oracle\oradata\orcl\users01.dbf',
'd:\oracle\oradata\orcl\file1.dbf',
'd:\oracle\oradata\orcl\file2.dbf'
;I'm not sure the RENAME clause allows multiple files to be listed like that. In any event, just reduce the chance of error, I'd do it file by file.
You forgot to mention that you need to actually move the files, at the os level. All the above does is change their entries in the control file. It doesn't do anything at all to the files themselves.
>
shutdown immediate
startup
No need for the shutdown. You could just ALTER DATBASE OPEN.
>
>
you can get a full listing of files by
alter database backup controlfile to trace;
and you can then copy and paste from that ...
Simpler, just select from dba_data_files.
eta. of course assuming you mean move your database files rather than your installation
Edited by: bobonacus on Jun 16, 2011 3:30 PM

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