--1. 修复上个练习中产生的失败

RMAN> repair failure;

Strategy: The repair includes complete media recovery with no data loss

Repair script: /u01/app/oracle/diag/rdbms/testdb12/TestDB12/hm/reco_3484385522.hm

contents of repair script:

   # restore and recover datafile

   sql 'alter database datafile 4 offline';

   restore datafile 4;

   recover datafile 4;

   sql 'alter database datafile 4 online';

Do you really want to execute the above repair (enter YES or NO)? y

executing repair script

sql statement: alter database datafile 4 offline

Starting restore at 12-JUL-13

using channel ORA_DISK_1

channel ORA_DISK_1: starting datafile backup set restore

channel ORA_DISK_1: specifying datafile(s) to restore from backup set

channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/TestDB12/users01.dbf

channel ORA_DISK_1: reading from backup piece /u01/app/oracle/fast_recovery_area/TESTDB12/backupset/2013_07_12/o1_mf_nnndf_TAG20130712T032327_8xzcqj9p_.bkp

channel ORA_DISK_1: piece handle=/u01/app/oracle/fast_recovery_area/TESTDB12/backupset/2013_07_12/o1_mf_nnndf_TAG20130712T032327_8xzcqj9p_.bkp tag=TAG20130712T032327

channel ORA_DISK_1: restored backup piece 1

channel ORA_DISK_1: restore complete, elapsed time: 00:00:01

Finished restore at 12-JUL-13

Starting recover at 12-JUL-13

using channel ORA_DISK_1

starting media recovery

media recovery complete, elapsed time: 00:00:00

Finished recover at 12-JUL-13

sql statement: alter database datafile 4 online

repair failure complete

# 再次访问dept表，恢复正常的访问

scott@TESTDB12>select * from dept;

    DEPTNO DNAME          LOC

---------- -------------- -------------

        10 ACCOUNTING     NEW YORK

        20 RESEARCH       DALLAS

        30 SALES          CHICAGO

        40 OPERATIONS     BOSTON

# 再次查看失败，刚刚修复的失败已经不存在了

RMAN> list failure;

no failures found that match specification