Cannot resize the datafile

Question

Hi All,
Previously i have enable the autoextened on for datafile but now i disable the autoextend but after autoextened off i cannot resize the datafile.
Please find the below example.
Total Free Free
Tablespace Data File Space [MB] Space [MB] %
TRUSTWARE01 E:\ORACLE\PRODUCT\10.2.0\ORADATA\WPABETA\TRUSTWARE01 14556.75 9275.13 63.72
D:\ORACLE\ORADATA\WPABETA\TRUSTWARE02.DBF 17764.88 12684.81 71.40
D:\ORACLE\ORADATA\WPABETA\TRUSTWARE05.DBF 3225.56 397.13 12.31
SQL>
SQL> alter database datafile 'D:\ORACLE\ORADATA\WPABETA\TRUSTWARE02.DBF' resize 10240M;
alter database datafile 'D:\ORACLE\ORADATA\WPABETA\TRUSTWARE02.DBF' resize 10240M
ERROR at line 1:
ORA-03297: file contains used data beyond requested RESIZE value

Answer 1

Try this, modify it to mention the tablespace name or the datafile name. This is from http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:153612348067
----------- maxshrink.sql ----------------------------------
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
/Regards,
SK
Edited by: SK on Dec 6, 2010 9:36 AM