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HomeDatabaseMysql TutorialOracle归档模式与非归档模式设置

Oracle的日志归档模式可以有效的防止instance和disk的故障,在数据库故障恢复中不可或缺,由于oracle初始安装模式为非归档模式,

Oracle的日志归档模式可以有效的防止instance和disk的故障,在数据库故障恢复中不可或缺,由于oracle初始安装模式为非归档模式,因此需要将其设置为归档模式,下面就其方法和步骤做一些总结,虽然简单,但这是管理oracle数据库必备之工,故有如下陈述。 

例子是建立在windowsXP和oracle11g的环境下,如有环境不同,仅供参考。

Oracle非归档模式设置为归档模式方法步骤:

1,  运行cmd命令,开启sql*plus

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

2,  以sysdba身份连接数据库

SQL> CONNECT/AS SYSDBA

3,,  若数据库是打开的,首先关闭卸载数据库。

SQL> SHUTDOWN

4,  以mount模式打开数据库。

SQL> STARTUP MOUNT

5,  查询当前归档模式

SQL> ARCHIVE  LOG  LIST

数据库日志模式             非存档模式

自动存档             禁用

存档终点            USE_DB_RECOVERY_FILE_DEST

最早的联机日志序列     1

当前日志序列           1

6,  更改归档模式为ARCHIVELOG

SQL> ALTER DATABASE ARCHIVELOG;

SQL> ARCHIVE  LOG  LIST

存档终点            USE_DB_RECOVERY_FILE_DEST

最早的联机日志序列     1

下一个存档日志序列   1

当前日志序列           1

SQL> ALTER  DATABASE  OPEN;

SQL> select  log_mode  from  v$database;

LOG_MODE

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

ARCHIVELOG

如果因特殊需要,需要重新设置数据库为非归档模式,可以参照如下方法。

Oracle归档模式设置为非归档模式方法步骤:

1,运行cmd命令,开启sql*plus

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

2以sysdba身份连接数据库

SQL> CONNECT/AS SYSDBA

3,  若数据库是打开的,首先关闭卸载数据库。

SQL> SHUTDOWN

4,  以mount模式打开数据库。

SQL> STARTUP MOUNT

5,  查询当前归档模式

SQL> ARCHIVE  LOG  LIST

存档终点            USE_DB_RECOVERY_FILE_DEST

最早的联机日志序列     1

下一个存档日志序列   1

当前日志序列           1

6,  更改归档模式为ARCHIVELOG

SQL> ALTER DATABASE NOARCHIVELOG;

SQL> ARCHIVE  LOG  LIST

数据库日志模式             非存档模式

自动存档             禁用

存档终点            USE_DB_RECOVERY_FILE_DEST

最早的联机日志序列     1

当前日志序列           1

SQL> ALTER  DATABASE  OPEN;

    SQL> select  log_mode  from  v$database;

 

LOG_MODE

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

NOARCHIVELOG

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