确保已经对全库进行备份

1、删除所有文件

[oracle@sql ~]$ cd /oracle/app/oradata/TEST/

[oracle@sql TEST]$ ls

control01.ctl  initnew.ora  redo03.log    tbs_recover.dbf  users01.dbf

control02.ctl  redo01.log   sysaux01.dbf  temp01.dbf

control03.ctl  redo02.log   system01.dbf  undotbs01.dbf

[oracle@sql TEST]$ rm -fr *

[oracle@sql ~]$ cd /oracle/app/oracle/product/10.2.0/db_1/dbs/

[oracle@sql dbs]$ ls

hc_TEST.dat  initTEST.ora  orapwTEST      spfileTEST.ora

init.ora     lkTEST        snapcf_TEST.f

[oracle@sql dbs]$ rm -fr spfileTEST.ora

SQL> startup

ORACLE instance started.

Total System Global Area  167772160 bytes

Fixed Size                  1218316 bytes

Variable Size              67111156 bytes

Database Buffers           96468992 bytes

Redo Buffers                2973696 bytes

ORA-00205: error in identifying control file, check alert log for more info

2、找到数据库启动时加载的参数文件

[oracle@sql ~]$ cd /oracle/app/admin/TEST/bdump/

[oracle@sql bdump]$ tail -500 alert_TEST.log | more

processes                = 150

__shared_pool_size       = 54525952

__large_pool_size        = 4194304

__java_pool_size         = 4194304

__streams_pool_size      = 0

sga_target               = 167772160

control_files            = /oracle/app/oradata/TEST/control01.ctl, /oracle/app/oradata/TEST/control02.ctl, /oracle/app/oradata/TEST/control03.ctl

db_block_size            = 8192

__db_cache_size          = 100663296

compatible               = 10.2.0.1.0

db_file_multiblock_read_count= 16

db_recovery_file_dest    = /oracle/app/flash_recovery_area

db_recovery_file_dest_size= 2147483648

_allow_resetlogs_corruption= TRUE

undo_management          = AUTO

undo_tablespace          = UNDOTBS1

remote_login_passwordfile= EXCLUSIVE

db_domain                =

dispatchers              = (PROTOCOL=TCP) (SERVICE=TESTXDB)

utl_file_dir             = /home/oracle/logminer

job_queue_processes      = 10

background_dump_dest     = /oracle/app/admin/TEST/bdump

user_dump_dest           = /oracle/app/admin/TEST/udump

core_dump_dest           = /oracle/app/admin/TEST/cdump

audit_file_dest          = /oracle/app/admin/TEST/adump

db_name                  = TEST

open_cursors             = 300

pga_aggregate_target     = 16777216

3、将参数文件写入一个文件中

[oracle@sql ~]$ vim initnew.ora

db_domain =

dispatchers = (PROTOCOL=TCP) (SERVICE=TESTXDB)

以上这两行删除掉

4、正常启动

SQL>shutdown abort;

SQL> startup nomount pfile=/home/oracle/initnew.ora

5、恢复 spfile

restore spfile from'/home/oracle/db_bak/1hnspkoo';

[oracle@sql ~]$ cd /oracle/app/oracle/product/10.2.0/db_1/dbs/

[oracle@sql dbs]$ ls

hc_TEST.dat  initTEST.ora  orapwTEST      spfileTEST.ora

init.ora     lkTEST        snapcf_TEST.f

6、SQL> startup nomount force;(用恢复的spfile启动)

Starting restore at 13-DEC-12

using target database control file instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: sid=155 devtype=DISK

channel ORA_DISK_1: restoring control file

channel ORA_DISK_1: restore complete, elapsed time: 00:00:03

output filename=/oracle/app/oradata/TEST/control01.ctl

output filename=/oracle/app/oradata/TEST/control02.ctl

output filename=/oracle/app/oradata/TEST/control03.ctl

Finished restore at 13-DEC-12

7、恢复数据文件

RMAN> alter database mount;

RMAN> restore database;

RMAN> recover database;(报错因为没有日志了，但必须运行)

RMAN> alter database open resetlogs;

至此数据库已经恢复 我们查看数据库损坏之前的数据。

SQL> select count(*) from abc;

COUNT(*)

----------

99504

SQL> select count(*) from nba;

COUNT(*)

----------

99504