Oracle PuorkAround

SQL> recover datafile 1;
ORA-00283: recovery session canceled due to errors
ORA-01122: database file 1 failed verification check
ORA-01110: data file 1: '/disk2/PRAPS_DB/datafiles/PRAPSsys01.dbf'
ORA-01200: actual file size of 92956 is smaller than correct size of 92957
blocks


SQL> exit
Disconnected from Oracle8i Enterprise Edition Release 8.1.7.4.0 - Production
With the Partitioning option
JServer Release 8.1.7.4.0 - Production
ES40:/usr/oracle/emigar$ dd if=/dev/null of=/disk2/PRAPS_DB/datafiles/PRAPSsys01.dbf bs=4k seek=92958 count=1
0+0 records in
0+0 records out