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在非归档模式下，丢失任意的数据文件并恢复数据库。以下是测试的过程：
— 查看数据库的归档模式：
PROD>archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 1
Current log sequence 3
PROD>
— 进入 rman 进行全库备份：
[Oracle@enmo ~]$ rman target /
Recovery Manager: Release 11.2.0.4.0 – Production on Mon Nov 21 23:09:20 2016
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: PROD (DBID=338469376, not open)
RMAN>
— 进行全库备份：
RMAN> backup database;
Starting backup at 21-NOV-16
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=20 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00001 name=/u01/app/oracle/oradata/PROD/system01.dbf
input datafile file number=00002 name=/u01/app/oracle/oradata/PROD/sysaux01.dbf
input datafile file number=00005 name=/u01/app/oracle/oradata/PROD/example01.dbf
input datafile file number=00003 name=/u01/app/oracle/oradata/PROD/undotbs01.dbf
input datafile file number=00008 name=/u01/app/oracle/oradata/myspace_01.dbf
input datafile file number=00006 name=/u01/app/oracle/oradata/PROD/ts_xxf_01.dbf
input datafile file number=00004 name=/u01/app/oracle/oradata/PROD/users01.dbf
input datafile file number=00007 name=/u01/app/oracle/oradata/PROD/ts_ctl01.dbf
channel ORA_DISK_1: starting piece 1 at 21-NOV-16
channel ORA_DISK_1: finished piece 1 at 21-NOV-16
piece handle=/u01/app/backup/db_0lrlgn84_1_1.rmn tag=TAG20161121T231100 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:04:50
Finished backup at 21-NOV-16
Starting Control File and SPFILE Autobackup at 21-NOV-16
piece handle=/u01/app/FRA/PROD/autobackup/2016_11_21/o1_mf_s_928537336_d363x905_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 21-NOV-16
— 打开数据库：
PROD>alter database open;
Database altered.
— 删除所有数据文件：
[oracle@enmo ~]$ cd /u01/app/oracle/oradata/PROD/
[oracle@enmo PROD]$ ls
control01.ctl redo01.log redo03b.log system01.dbf temp04.dbf undotbs01.dbf
example01.dbf redo02b.log redo03.log temp01.dbf ts_ctl01.dbf users01.dbf
redo01b.log redo02.log sysaux01.dbf temp03.dbf ts_xxf_01.dbf
[oracle@enmo PROD]$
[oracle@enmo PROD]$
[oracle@enmo PROD]$ rm *.dbf
[oracle@enmo PROD]$ ls *.dbf
ls: *.dbf: No such file or directory
#已经删除所有数据文件。
— 使用 rman 进行恢复数据库：
[oracle@enmo ~]$ rman target /
Recovery Manager: Release 11.2.0.4.0 – Production on Mon Nov 21 23:23:58 2016
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: PROD (DBID=338469376, not open)
RMAN>
– 重载数据库：
RMAN> restore database;
Starting restore at 21-NOV-16
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=17 device type=DISK
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 00001 to /u01/app/oracle/oradata/PROD/system01.dbf
channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/PROD/sysaux01.dbf
channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/PROD/undotbs01.dbf
channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/PROD/users01.dbf
channel ORA_DISK_1: restoring datafile 00005 to /u01/app/oracle/oradata/PROD/example01.dbf
channel ORA_DISK_1: restoring datafile 00006 to /u01/app/oracle/oradata/PROD/ts_xxf_01.dbf
channel ORA_DISK_1: restoring datafile 00007 to /u01/app/oracle/oradata/PROD/ts_ctl01.dbf
channel ORA_DISK_1: restoring datafile 00008 to /u01/app/oracle/oradata/myspace_01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/backup/db_0lrlgn84_1_1.rmn
channel ORA_DISK_1: piece handle=/u01/app/backup/db_0lrlgn84_1_1.rmn tag=TAG20161121T231100
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:05:14
Finished restore at 21-NOV-16
– 通过介质恢复数据库：
RMAN> recover database;
Starting recover at 21-NOV-16
using channel ORA_DISK_1
starting media recovery
archived log for thread 1 with sequence 3 is already on disk as file /u01/app/oracle/oradata/PROD/redo03.log
archived log file name=/u01/app/oracle/oradata/PROD/redo03.log thread=1 sequence=3
media recovery complete, elapsed time: 00:00:02
Finished recover at 21-NOV-16
— 尝试打开数据库：
RMAN> alter database open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of alter db command at 11/21/2016 23:30:18
ORA-01589: must use RESETLOGS or NORESETLOGS option for database open
— 以 RESETLOGS 方式打开数据库：
RMAN> alter database open RESETLOGS;
database opened
— 恢复之后查看数据文件：
[oracle@enmo PROD]$ ls *.dbf
example01.dbf system01.dbf temp03.dbf ts_ctl01.dbf undotbs01.dbf
sysaux01.dbf temp01.dbf temp04.dbf ts_xxf_01.dbf users01.dbf
[oracle@enmo PROD]$
# 所有的数据文件恢复成功。
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