SQLgt; alter database begin backup; –开始备份数据库 Database altered. SQLgt; host cp /u01/Oracle/oradata/ORCL/*
oracle备份时发生断电的对策
[日期：2012-12-20]来源：Linux社区 作者：kaixin1998[字体：]
SQL> alter database begin backup; –开始备份数据库
Database altered.
SQL> host cp /u01/Oracle/oradata/ORCL/*.dbf /u01/oracle/dump1/ –还没执行完毕就断电关机了，，abort
在重启数据库的时候，出现的问题
[root@station88 ~]# su – oracle
[oracle@station88 ~]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.4.0 – Production on Sat Dec 15 07:51:29 2012
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
SQL> conn /as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 373293056 bytes
Fixed Size 1267572 bytes
Variable Size 104859788 bytes
Database Buffers 264241152 bytes
Redo Buffers 2924544 bytes
Database mounted.
ORA-01113: file 1 needs media recovery
ORA-01110: data file 1: ‘/u01/oracle/oradata/ORCL/system01.dbf’
解决方法是：恢复数据文件
SQL> recover datafile ‘/u01/oracle/oradata/ORCL/system01.dbf’ –恢复数据文件
Media recovery complete.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 2 needs media recovery
ORA-01110: data file 2: ‘/u01/oracle/oradata/ORCL/undotbs01.dbf’
SQL> recover datafile ‘/u01/oracle/oradata/ORCL/undotbs01.dbf’
Media recovery complete.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 3 needs media recovery
ORA-01110: data file 3: ‘/u01/oracle/oradata/ORCL/sysaux01.dbf’
SQL> recover datafile ‘/u01/oracle/oradata/ORCL/sysaux01.dbf’
Media recovery complete.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 4 needs media recovery
ORA-01110: data file 4: ‘/u01/oracle/oradata/ORCL/users01.dbf’
SQL> recover datafile ‘/u01/oracle/oradata/ORCL/users01.dbf’
Media recovery complete.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 5 needs media recovery
ORA-01110: data file 5: ‘/u01/oracle/oradata/ORCL/example01.dbf’
SQL> recover datafile ‘/u01/oracle/oradata/ORCL/example01.dbf’
Media recovery complete.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 6 needs media recovery
ORA-01110: data file 6: ‘/u01/oracle/oradata/ORCL/plsql01.dbf’
SQL> recover datafile ‘/u01/oracle/oradata/ORCL/plsql01.dbf’
Media recovery complete.
SQL> recover datafile ‘/u01/oracle/oradata/ORCL/dmptest01.dbf’
Media recovery complete.
SQL> alter database open;
Database altered.
数据库open来就可以了
说明：本实验oracle的版本是10.2.0.4.0
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