恢复的原理，请查看关于该恢复主题的第一篇博文：
http://fly1116.blog.51cto.com/8301004/1337681
恢复过程使用的fly.sh脚本，及其他脚本的简要介绍，请看关于该恢复主题的第二篇博文：
http://fly1116.blog.51cto.com/8301004/1338316
在数据库非归档状态，没有任何的备份情况下，通过操作系统命令rm，误删除了所有数据文件，要如何恢复呢
1、数据库版本11.1.0.7.0和数据库处于非归档状态
SQL> select * from v$version;
BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
PL/SQL Release 11.1.0.7.0 - Production
CORE 11.1.0.7.0 Production
TNS for Linux: Version 11.1.0.7.0 - Production
NLSRTL Version 11.1.0.7.0 - Production
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination /archivelog
Oldest online log sequence 45
Current log sequence 47
SQL>
2、在fly用户下创建fly表,表记录为：2256800
SQL> conn fly/fly
Connected.
SQL> create table fly as select * from dba_objects;
Table created.
SQL> insert into fly select * from fly;
70525 rows created.
SQL> /
141050 rows created.
SQL> /
282100 rows created.
SQL> /
564200 rows created.
SQL> /
1128400 rows created.
SQL> commit;
Commit complete.
SQL> select count(*) from fly;
COUNT(*)
----------
2256800
3、查看所有数据文件，以及删除所有数据文件
oracle@fly007:~> cat fly.sh
#!/bin/bash
rman target sys/oracle<<EOF 1>/dev/null
crosscheck archivelog all;
delete noprompt expired archivelog all;
quit
EOF
if [ -f fly_datafile.sh ];then
rm fly_datafile.sh
fi
sqlplus /nolog<<EOF
conn sys/oracle as sysdba
@fly.sql
EOF
chmod u+x fly_datafile.sh
oracle@fly007:~> cat fly.sql
set echo on
col file_name format a80
col name format a100
set linesize 200
select file_name from dba_data_files;
select name from v$archived_log where name is not null;
set echo off
set heading off
set newpage none
set feedback off
set termout off
set trimspool on
spool fly_datafile.sh
select 'rm'||' '||file_name from dba_data_files;
select 'rm'||' '||name from v$archived_log where name is not null;
spool off
quit
oracle@fly007:~> ./fly.sh
SQL*Plus: Release 11.1.0.7.0 - Production on Mon Dec 9 21:11:29 2013
Copyright (c) 1982, 2008, Oracle. All rights reserved.
SQL> Connected.
SQL> SQL> col file_name format a80
SQL> col name format a100
SQL> set linesize 200
SQL> select file_name from dba_data_files;
FILE_NAME
--------------------------------------------------------------------------------
/home/oracle/oradata/fly/datafiles/fly01.dbf
/home/oracle/oradata/APPLE/datafile/users02.dbf
/home/oracle/oradata/APPLE/datafile/o1_mf_users_8mfvsbdd_.dbf
/home/oracle/oradata/APPLE/datafile/o1_mf_undotbs1_8mfvsbbx_.dbf
/home/oracle/oradata/APPLE/datafile/o1_mf_sysaux_8mfvsb9t_.dbf
/home/oracle/oradata/APPLE/datafile/o1_mf_system_8mfvsb5r_.dbf
/home/oracle/oradata/APPLE/datafile/o1_mf_example_8mfvwlmk_.dbf
/home/oracle/oradata/APPLE/datafile/example02.dbf
/home/oracle/oradata/APPLE/datafile/example03.dbf
/home/oracle/oradata/APPLE/datafile/example04.dbf
/home/oracle/oradata/APPLE/datafile/example05.dbf
/home/oracle/oradata/APPLE/datafile/system03.dbf
/home/oracle/oradata/APPLE/datafile/sysaux03.dbf
13 rows selected.
SQL> select name from v$archived_log where name is not null;
no rows selected
SQL> set echo off
Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
With the Partitioning, Oracle Label Security, OLAP, Data Mining,
Oracle Database Vault and Real Application Testing options
oracle@fly007:~> cat fly_datafile.sh
rm /home/oracle/oradata/fly/datafiles/fly01.dbf
rm /home/oracle/oradata/APPLE/datafile/users02.dbf
rm /home/oracle/oradata/APPLE/datafile/o1_mf_users_8mfvsbdd_.dbf
rm /home/oracle/oradata/APPLE/datafile/o1_mf_undotbs1_8mfvsbbx_.dbf
rm /home/oracle/oradata/APPLE/datafile/o1_mf_sysaux_8mfvsb9t_.dbf
rm /home/oracle/oradata/APPLE/datafile/o1_mf_system_8mfvsb5r_.dbf
rm /home/oracle/oradata/APPLE/datafile/o1_mf_example_8mfvwlmk_.dbf
rm /home/oracle/oradata/APPLE/datafile/example02.dbf
rm /home/oracle/oradata/APPLE/datafile/example03.dbf
rm /home/oracle/oradata/APPLE/datafile/example04.dbf
rm /home/oracle/oradata/APPLE/datafile/example05.dbf
rm /home/oracle/oradata/APPLE/datafile/system03.dbf
rm /home/oracle/oradata/APPLE/datafile/sysaux03.dbf
oracle@fly007:~> ./fly_datafile.sh
oracle@fly007:~>
4、fly用户创建表报错
oracle@fly007:~> sqlplus /nolog
SQL*Plus: Release 11.1.0.7.0 - Production on Mon Dec 9 21:11:52 2013
Copyright (c) 1982, 2008, Oracle. All rights reserved.
SQL> conn sys/oracle as sysdba
Connected.
SQL> conn fly/fly
Connected.
SQL> create table fly008 as select * from dba_objects;
create table fly008 as select * from dba_objects
*
ERROR at line 1:
ORA-01116: error in opening database file 7
ORA-01110: data file 7: '/home/oracle/oradata/fly/datafiles/fly01.dbf'
ORA-27041: unable to open file
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
5、停止监听，kill通过监听连接过来的进程
oracle@fly007:~> lsnrctl stop
LSNRCTL for Linux: Version 11.1.0.7.0 - Production on 09-DEC-2013 21:29:29
Copyright (c) 1991, 2008, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.46.200.5)(PORT=1521)))
The command completed successfully
oracle@fly007:~> ps aux | grep LOCAL=NO | grep -v grep | awk '{print $2}' | xargs kill -9
oracle@fly007:~>
6、查看dbw0进程pid，查看哪些数据文件被删除了,拷贝被删除的数据文件到原来的位置
oracle@fly007:~> ps aux | grep dbw0 | grep -v grep
oracle 1257 0.0 4.5 3431904 366532 ? Ss 15:36 0:01 ora_dbw0_apple
oracle@fly007:~> cd /proc/1257/fd
oracle@fly007:/proc/1257/fd> ls -l | grep delete
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 10 -> /home/oracle/product/11g/db/dbs/lkinstapple (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 22 -> /home/oracle/oradata/APPLE/datafile/o1_mf_system_8mfvsb5r_.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 23 -> /home/oracle/oradata/APPLE/datafile/o1_mf_sysaux_8mfvsb9t_.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 24 -> /home/oracle/oradata/APPLE/datafile/o1_mf_undotbs1_8mfvsbbx_.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 25 -> /home/oracle/oradata/APPLE/datafile/o1_mf_users_8mfvsbdd_.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 26 -> /home/oracle/oradata/APPLE/datafile/o1_mf_example_8mfvwlmk_.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 28 -> /home/oracle/oradata/APPLE/datafile/example02.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 29 -> /home/oracle/oradata/APPLE/datafile/example03.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 30 -> /home/oracle/oradata/APPLE/datafile/example04.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 31 -> /home/oracle/oradata/APPLE/datafile/example05.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 32 -> /home/oracle/oradata/APPLE/datafile/users02.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 33 -> /home/oracle/oradata/APPLE/datafile/system03.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 15:55 34 -> /home/oracle/oradata/APPLE/datafile/sysaux03.dbf (deleted)
lrwx------ 1 oracle oinstall 64 2013-12-09 21:15 37 -> /home/oracle/oradata/fly/datafiles/fly01.dbf (deleted)
oracle@fly007:/proc/1257/fd> ls -l | grep delete | grep dbf | awk '{print $8,$10}' > /tmp/copy_datafile.sh
oracle@fly007:/proc/1257/fd> cat /tmp/copy_datafile.sh
22 /home/oracle/oradata/APPLE/datafile/o1_mf_system_8mfvsb5r_.dbf
23 /home/oracle/oradata/APPLE/datafile/o1_mf_sysaux_8mfvsb9t_.dbf
24 /home/oracle/oradata/APPLE/datafile/o1_mf_undotbs1_8mfvsbbx_.dbf
25 /home/oracle/oradata/APPLE/datafile/o1_mf_users_8mfvsbdd_.dbf
26 /home/oracle/oradata/APPLE/datafile/o1_mf_example_8mfvwlmk_.dbf
28 /home/oracle/oradata/APPLE/datafile/example02.dbf
29 /home/oracle/oradata/APPLE/datafile/example03.dbf
30 /home/oracle/oradata/APPLE/datafile/example04.dbf
31 /home/oracle/oradata/APPLE/datafile/example05.dbf
32 /home/oracle/oradata/APPLE/datafile/users02.dbf
33 /home/oracle/oradata/APPLE/datafile/system03.dbf
34 /home/oracle/oradata/APPLE/datafile/sysaux03.dbf
37 /home/oracle/oradata/fly/datafiles/fly01.dbf
oracle@fly007:/proc/1257/fd> sed -i -e "s/^/cp /g" -e "s/$/\ \&/g" /tmp/copy_datafile.sh
oracle@fly007:/proc/1257/fd> cat /tmp/copy_datafile.sh
cp 22 /home/oracle/oradata/APPLE/datafile/o1_mf_system_8mfvsb5r_.dbf &
cp 23 /home/oracle/oradata/APPLE/datafile/o1_mf_sysaux_8mfvsb9t_.dbf &
cp 24 /home/oracle/oradata/APPLE/datafile/o1_mf_undotbs1_8mfvsbbx_.dbf &
cp 25 /home/oracle/oradata/APPLE/datafile/o1_mf_users_8mfvsbdd_.dbf &
cp 26 /home/oracle/oradata/APPLE/datafile/o1_mf_example_8mfvwlmk_.dbf &
cp 28 /home/oracle/oradata/APPLE/datafile/example02.dbf &
cp 29 /home/oracle/oradata/APPLE/datafile/example03.dbf &
cp 30 /home/oracle/oradata/APPLE/datafile/example04.dbf &
cp 31 /home/oracle/oradata/APPLE/datafile/example05.dbf &
cp 32 /home/oracle/oradata/APPLE/datafile/users02.dbf &
cp 33 /home/oracle/oradata/APPLE/datafile/system03.dbf &
cp 34 /home/oracle/oradata/APPLE/datafile/sysaux03.dbf &
cp 37 /home/oracle/oradata/fly/datafiles/fly01.dbf &
oracle@fly007:/proc/1257/fd> chmod u+x /tmp/copy_datafile.sh
oracle@fly007:/proc/1257/fd> /tmp/copy_datafile.sh
oracle@fly007:/proc/1257/fd> watch -n 1 "ps aux | grep cp"
Every 1.0s: ps aux | grep cp Mon Dec 9 21:18:30 2013
root 45 0.0 0.0 0 0 ? S< Jul24 0:00 [kacpid]
root 46 0.0 0.0 0 0 ? S< Jul24 0:00 [kacpi_notify]
root 2858 0.0 0.0 2684 520 ? Ss Jul24 0:00 /sbin/acpid
root 3052 0.0 0.0 6080 700 ? S Jul24 0:00 hald-addon-acpi
root 7444 0.0 0.0 20356 2088 ? S Jul24 0:01 /usr/sbin/powersaved -d -f /var/run/acpid.socket -v 3
oracle 10123 2.3 0.0 5948 712 pts/0 D 21:16 0:02 cp 23 /home/oracle/oradata/APPLE/datafile/o1_mf_sysaux_8mfvsb9t_.dbf
oracle 10124 2.5 0.0 5948 712 pts/0 D 21:16 0:02 cp 24 /home/oracle/oradata/APPLE/datafile/o1_mf_undotbs1_8mfvsbbx_.dbf
oracle 10202 0.0 0.0 6400 1356 pts/0 S+ 21:18 0:00 watch -n 1 ps aux | grep cp
oracle 10206 0.0 0.0 9168 1532 pts/0 S+ 21:18 0:00 sh -c ps aux | grep cp
oracle 10208 0.0 0.0 3976 804 pts/0 S+ 21:18 0:00 grep cp
7、确认在线日志和控制文件没有丢失后，关闭数据库，进行recover database的操作
SQL> conn sys/oracle as sysdba
Connected.
SQL> shutdown immediate
ORA-01122: database file 1 failed verification check
ORA-01110: data file 1: '/home/oracle/oradata/APPLE/datafile/o1_mf_system_8mfvsb5r_.dbf'
ORA-01208: data file is an old version - not accessing current version
SQL> startup mount
ORA-01081: cannot start already-running ORACLE - shut it down first
SQL> shutdown abort
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.
Total System Global Area 3240239104 bytes
Fixed Size 2164048 bytes
Variable Size 2499807920 bytes
Database Buffers 721420288 bytes
Redo Buffers 16846848 bytes
Database mounted.
SQL> recover database;
Media recovery complete.
SQL> alter database open;
Database altered.
SQL>
8、查看表的数据，完全恢复
SQL> conn fly/fly
Connected.
SQL> select count(*) from fly;
COUNT(*)
----------
2256800
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