表的许多分区被意外drop用rman不完全恢复

uncompress /oracle/oradata/xxx/xxx.ARC.Z 
...

begin
sys.dbms_logmnr.add_logfile('/oracle/oradata/xxx/xxx.ARC');
...
end;

begin sys.dbms_logmnr.start_logmnr(Options => sys.dbms_logmnr.DICT_FROM_ONLINE
                                                     _CATALOG); end;

create table xsb_logminer_1 as 
select timestamp, seg_name,operation, sql_redo 
from V$LOGMNR_CONTENTS 
where seg_owner='XXX' and operation='DDL' and sql_redo like 'ALTER TABLE XXX 
              DROP PARTITION %';

BEGIN sys.dbms_logmnr.end_logmnr();END;

orapwd file=... password=xxx

export ORACLE_SID=xxx
sqlplus / as sysdba
startup nomount pfile='/home/oracle/init_xxx.ora';
create spfile from pfile='/home/oracle/init_xxx.ora';

exit

RMAN target sys/xxx
restore controlfile from '...';
startup mount
--crosscheck backup;
list backup;

run 
{
set newname for datafile 1 to '/oracle/oradata/xxx/system01.dbf';
set newname for datafile 2 to '/oracle/oradata/xxx/undo01.dbf';
set newname for datafile 3 to '/oracle/oradata/xxx/sysaux01.dbf';
set newname for datafile 6 to '/oracle/oradata/xxx/pay_ts01.dbf';
restore datafile 1;
restore datafile 2;
restore datafile 3; 
restore datafile 6;
}
(注：发现单个datafile恢复不如整库恢复快！)
sql 'alter database backup controlfile to trace';
shutdown immediate;
exit