1.shutdown normal或shutdown immediate关闭数据库
[oracle@jumper oracle]$ sqlplus "/ as sysdba"
SQL*Plus: Release 9.2.0.4.0 - Production on Sat Oct 15 15:48:36 2005
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning option
JServer Release 9.2.0.4.0 - Production
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
2.启动数据库到mount状态
SQL> startup mount;
ORACLE instance started.
Total System Global Area 101782828 bytes
Fixed Size 451884 bytes
Variable Size 37748736 bytes
Database Buffers 62914560 bytes
Redo Buffers 667648 bytes
Database mounted.
3.启用或停止归档模式
如果要启用归档模式，此处使用
alter database archivelog 命令。
SQL> alter database archivelog;
Database altered.
SQL> alter database open;
Database altered.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /opt/oracle/oradata/conner/archive
Oldest online log sequence 148
Next log sequence to archive 151
Current log sequence 151
如果需要停止归档模式，此处使用：
alter database noarchivelog 命令。
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 101782828 bytes
Fixed Size 451884 bytes
Variable Size 37748736 bytes
Database Buffers 62914560 bytes
Redo Buffers 667648 bytes
Database mounted.
SQL> alter database noarchivelog;
Database altered.
SQL> alter database open;
Database altered.
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Enabled
Archive destination /opt/oracle/oradata/conner/archive
Oldest online log sequence 149
Current log sequence 152
（文/陈林 出处/赛迪网）
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