select * from v$recover_file;
FILE# ONLINE ERROR CHANGE# TIME
---------- ------- ------------------ ---------- ---------
67 OFFLINE FILE MISSING 0
1 row selected.


SVRMGR> select * from dba_data_files where file_id='67';
FILE_NAME FILE_ID TABLESPACE_NAME
BYTES BLOCKS STATUS RELATIVE_F AUT MAXBYTES MAXBLOCKS INCREMENT_
-------------------------------------------------------------------------------- ---------- ----------------------------
-- ---------- ---------- --------- ---------- --- ---------- ---------- ----------
/oracle/sid/dbs/MISSING00067 67 PSAPSTABD
1038082048 126719 AVAILABLE 67 NO 0 0 0


the original file is -rw-r----- 1 orasid dba 1038090240 Dec 10 15:45 /oracle/sid/sapdata3/stabd_4/stabd.data4

how can i recover?