恢復的原理，請查看關於該恢復主題的第一篇博文：
http://fly1116.blog.51cto.com/8301004/1337681
恢復過程使用的fly.sh腳本，及其他腳本的簡要介紹，請看關於該恢復主題的第二篇博文：
http://fly1116.blog.51cto.com/8301004/1338316
在數據庫非歸檔狀態，沒有任何的備份情況下，通過操作系統命令rm，誤刪除了所有數據文件，要如何恢復呢
1、數據庫版本11.1.0.7.0和數據庫處於非歸檔狀態
SQL> select * from v$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production PL/SQL Release 11.1.0.7.0 - Production CORE 11.1.0.7.0 Production TNS for Linux: Version 11.1.0.7.0 - Production NLSRTL Version 11.1.0.7.0 - Production SQL> archive log list; Database log mode No Archive Mode Automatic archival Disabled Archive destination /archivelog Oldest online log sequence 45 Current log sequence 47 SQL>
2、在fly用戶下創建fly表,表記錄爲：2256800
SQL> conn fly/fly Connected. SQL> create table fly as select * from dba_objects; Table created. SQL> insert into fly select * from fly; 70525 rows created. SQL> / 141050 rows created. SQL> / 282100 rows created. SQL> / 564200 rows created. SQL> / 1128400 rows created. SQL> commit; Commit complete. SQL> select count(*) from fly; COUNT(*) ---------- 2256800
3、查看所有數據文件，以及刪除所有數據文件
oracle@fly007:~> cat fly.sh #!/bin/bash rman target sys/oracle<<EOF 1>/dev/null crosscheck archivelog all; delete noprompt expired archivelog all; quit EOF if [ -f fly_datafile.sh ];then rm fly_datafile.sh fi sqlplus /nolog<<EOF conn sys/oracle as sysdba @fly.sql EOF chmod u+x fly_datafile.sh oracle@fly007:~> cat fly.sql set echo on col file_name format a80 col name format a100 set linesize 200 select file_name from dba_data_files; select name from v$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用戶創建表報錯
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、停止監聽，kill通過監聽連接過來的進程
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進程pid，查看哪些數據文件被刪除了,拷貝被刪除的數據文件到原來的位置
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 cp7、確認在線日誌和控制文件沒有丟失後，關閉數據庫，進行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、查看錶的數據，完全恢復
SQL> conn fly/fly Connected. SQL> select count(*) from fly; COUNT(*) ---------- 2256800