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【原】Oracle学习系列—数据库备份—脱机备份

上一篇 / 下一篇  2008-02-26 23:24:27 / 个人分类:数据库专区

脱机备份一般均采用操作系统的物理拷贝来完成文件系统的备份。

脱机备份的内容包括数据库物理文件、联机日志文件、控制文件。

脱机备份对归档和非归档无特别要求,不需要对归档日志进行备份。

脱机备份耗时可能比较长,备份的关闭数据库的要求,影响用户的正常使用。不适合做为7×24小时运行的数据库备份策略

ITPUB个人空间w }_quRG5f

脱机备份的操作步骤:

1、通过数据字典获取文件备份列表

2、Shutdown正常关闭数据库

3、通过操作系统拷贝物理文件

4、启动数据库。

Microsoft Windows [Version 5.2.3790]

(C) Copyright 1985-2003 Microsoft Corp.

C:/Documents and Settings/Administrator>sqlplus /nolog

SQL*Plus: Release 9.2.0.1.0 - Production on Mon Mar 26 01:23:22 2007

Copyright (c) 1982, 2002, Oracle Corporation.All rights reserved.

SQL> connect sys/change_on_install as sysdba;

Connected.

SQL> select file_name from dba_data_files;

FILE_NAME

--------------------------------------------------------------------

C:/ORACLE/ORADATA/WBQ/SYSTEM01.DBF

C:/ORACLE/ORADATA/WBQ/UNDOTBS01.DBF

C:/ORACLE/ORADATA/WBQ/MYDATABLESPACE01.DBF

C:/ORACLE/ORADATA/WBQ/MYDATABLESPACE02.DBF

C:/ORACLE/ORADATA/WBQ/MYDATABLESPACE03.DBF

SQL> select * from v$logfile;

GROUP# STATUSTYPEMEMBER

---------- ------- ------- ------------------------------------------

1ONLINE C:/ORACLE/ORADATA/WBQ/REDO01.LOG

2ONLINE C:/ORACLE/ORADATA/WBQ/REDO02.LOG

3ONLINE C:/ORACLE/ORADATA/WBQ/REDO03.LOG

SQL> select * from v$controlfile;

STATUS NAME

---------------------------------------------------------------------

C:/ORACLE/ORADATA/WBQ/CONTROL01.CTL

C:/ORACLE/ORADATA/WBQ/CONTROL02.CTL

C:/ORACLE/ORADATA/WBQ/CONTROL03.CTL

SQL>shutdown immediate

Datebase clodes.

Datebase dismounted.

ORACLE instance shut down.

SQL> exit

Disconnected from Oracle9iEnterpriseEdition Release 9.2.0.1.0 - Production

With the Partitioning, OLAP and Oracle Data Mining options

JServer Release 9.2.0.1.0 - Production

C:/Documents and Settings/Administrator>cd/

C:/>cd C:/oracle/oradata/wbq

C:/oracle/oradata/wbq>md backup

C:/oracle/oradata/wbq>copy control01.ctl backup

1 file(s) copied.

C:/oracle/oradata/wbq>copy control02.ctl backup

1 file(s) copied.

C:/oracle/oradata/wbq>copy control03.ctl backup

1 file(s) copied.

C:/oracle/oradata/wbq>copy REDO01.LOG backup

1 file(s) copied.

C:/oracle/oradata/wbq>copy REDO02.LOG backup

1 file(s) copied.

C:/oracle/oradata/wbq>copy REDO03.LOG backup

1 file(s) copied.

C:/oracle/oradata/wbq>copy SYSTEM01.DBF backup

1 file(s) copied.

C:/oracle/oradata/wbq>copy UNDOTBS01.DBF backup

1 file(s) copied.

C:/oracle/oradata/wbq>copy MYDATABLESPACE01.DBF backup

1 file(s) copied.

C:/oracle/oradata/wbq>copy MYDATABLESPACE02.DBF backup

1 file(s) copied.

C:/oracle/oradata/wbq>copy MYDATABLESPACE03.DBF backup

1 file(s) copied.

C:/oracle/oradata/wbq>sqlplus /nolog

SQL*Plus: Release 9.2.0.1.0 - Production on Mon Mar 26 01:37:07 2007

Copyright (c) 1982, 2002, Oracle Corporation.All rights reserved.

SQL> connect sys/change_on_install as sysdba;

Connected to an idle instance.

SQL> startup

ORACLE instance started.

Total System Global Area105978600 bytes

Fixed Size453352 bytes

Variable Size79691776 bytes

Database Buffers25165824 bytes

Redo Buffers667648 bytes

Database mounted.

Database opened.

SQL>


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