1.查看环境
1 -bash-3.00$ sqlplus /nolog 2 3 SQL*Plus: Release 10.2.0.2.0 - Production on Mon Jan 21 19:22:40 2013 4 5 Copyright (c) 1982, 2005, Oracle. All Rights Reserved. 6 7 SQL> conn /as sysdba 8 Connected. 9 SQL> archive log list; 10 Database log mode No Archive Mode 11 Automatic archival Disabled 12 Archive destination USE_DB_RECOVERY_FILE_DEST 13 Oldest online log sequence 1 14 Current log sequence 2 15 SQL>
2.非归档模式下备份（没有备份联机日志）
2.1关机
1 SQL> shutdown immediate 2 Database closed. 3 Database dismounted. 4 ORACLE instance shut down. 5 SQL>
2.2 备份数据文件，控制文件
1 /u01/oradata/sunbak 2 bash-3.00$ cp *.ctl /u01/backup/sunbak 3 bash-3.00$ cp *.dbf /u01/backup/sunbak 4 bash-3.00$
3.破坏当前数据库
1 bash-3.00$ pwd 2 /u01/oradata/sunbak 3 bash-3.00$ ls -l 4 total 2142000 5 -rw-r----- 1 oracle oinstall 7061504 Jan 21 19:27 control01.ctl 6 -rw-r----- 1 oracle oinstall 7061504 Jan 21 19:27 control02.ctl 7 -rw-r----- 1 oracle oinstall 7061504 Jan 21 19:27 control03.ctl 8 -rw-r----- 1 oracle oinstall 104865792 Jan 21 19:33 example01.dbf 9 -rw-r----- 1 oracle oinstall 52429312 Jan 21 19:27 redo01.log 10 -rw-r----- 1 oracle oinstall 52429312 Jan 21 18:52 redo02.log 11 -rw-r----- 1 oracle oinstall 52429312 Jan 21 18:52 redo03.log 12 -rw-r----- 1 oracle oinstall 251666432 Jan 21 19:34 sysaux01.dbf 13 -rw-r----- 1 oracle oinstall 503324672 Jan 21 19:34 system01.dbf 14 -rw-r----- 1 oracle oinstall 20979712 Jan 21 19:35 temp01.dbf 15 -rw-r----- 1 oracle oinstall 31465472 Jan 21 19:35 undotbs01.dbf 16 -rw-r----- 1 oracle oinstall 5251072 Jan 21 19:35 users01.dbf 17 bash-3.00$ rm -f * 18 bash-3.00$
4.还原（备份是并没有备份redo文件）
1 bash-3.00$ pwd 2 /u01/oradata/sunbak 3 bash-3.00$ cp /u01/backup/sunbak/* . 4 bash-3.00$ ls -l 5 total 1834512 6 -rw-r----- 1 oracle oinstall 7061504 Jan 21 19:43 control01.ctl 7 -rw-r----- 1 oracle oinstall 7061504 Jan 21 19:43 control02.ctl 8 -rw-r----- 1 oracle oinstall 7061504 Jan 21 19:43 control03.ctl 9 -rw-r----- 1 oracle oinstall 104865792 Jan 21 19:43 example01.dbf 10 -rw-r----- 1 oracle oinstall 251666432 Jan 21 19:43 sysaux01.dbf 11 -rw-r----- 1 oracle oinstall 503324672 Jan 21 19:44 system01.dbf 12 -rw-r----- 1 oracle oinstall 20979712 Jan 21 19:44 temp01.dbf 13 -rw-r----- 1 oracle oinstall 31465472 Jan 21 19:44 undotbs01.dbf 14 -rw-r----- 1 oracle oinstall 5251072 Jan 21 19:44 users01.dbf 15 bash-3.00$
5.恢复
5.1 打开到mount状态
1 bash-3.00$ sqlplus /nolog 2 3 SQL*Plus: Release 10.2.0.2.0 - Production on Mon Jan 21 19:47:04 2013 4 5 Copyright (c) 1982, 2005, Oracle. All Rights Reserved. 6 7 SQL> conn /as sysdba 8 Connected to an idle instance. 9 SQL> startup mount 10 ORACLE instance started. 11 12 Total System Global Area 289406976 bytes 13 Fixed Size 1279820 bytes 14 Variable Size 92276916 bytes 15 Database Buffers 192937984 bytes 16 Redo Buffers 2912256 bytes 17 Database mounted. 18 SQL>
5.2 执行recover命令
1 SQL> recover database until cancel using backup controlfile; 2 ORA-00279: change 570446 generated at 01/21/2013 19:27:52 needed for thread 1 3 ORA-00289: suggestion : 4 /u01/flash_recovery_area/SUN/archivelog/2013_01_21/o1_mf_1_2_%u_.arc 5 ORA-00280: change 570446 for thread 1 is in sequence #2 6 7 Specify log: {<RET>=suggested | filename | AUTO | CANCEL} 8 cancel 9 Media recovery cancelled. 10 SQL>
5.3 打开数据库并创建日志
1 SQL> alter database open resetlogs; 2 3 Database altered. 4 5 SQL>
6.验证日志文件已被创建
1 SQL> !ls /u01/oradata/sunbak/*.log 2 /u01/oradata/sunbak/redo01.log /u01/oradata/sunbak/redo02.log /u01/oradata/sunbak/redo03.log 3 4 SQL>