channel ORA_DISK_1: piece handle=/u02/database/usbo/fr_area/USBO/backupset/2013_08_28/o1_mf_nnndf_HEALTH_91vh6ntb_.bkp tag=HEALTH
channel ORA_DISK_1: restored block(s) from backup piece 1
channel ORA_DISK_1: block restore complete, elapsed time: 00:00:01
starting media recovery
media recovery complete, elapsed time: 00:00:03
Finished recover at 2013/08/28 17:22:31
--再次查询表tb_emp正常
SQL> select count(*) from tb_tmp;
COUNT(*)
----------
72449