$ sqlplus '/as sysdba'
SQL*Plus: Release 10.2.0.1.0 - Production on Thu Dec 10 13:38:57 2009
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup;
ORACLE instance started.
Total System Global Area 5016387584 bytes
Fixed Size 2027744 bytes
Variable Size 922750752 bytes
Database Buffers 4076863488 bytes
Redo Buffers 14745600 bytes
Database mounted.
Database opened.
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 62
Current log sequence 64
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 5016387584 bytes
Fixed Size 2027744 bytes
Variable Size 922750752 bytes
Database Buffers 4076863488 bytes
Redo Buffers 14745600 bytes
Database mounted.
SQL> alter database archivelog;
Database altered.
SQL> alter database open;
Database altered.
SQL> alter system set LOG_ARCHIVE_DEST_1='LOCATION=/ora_data/cpntest/archive';
System altered.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup;
ORACLE instance started.
Total System Global Area 5016387584 bytes
Fixed Size 2027744 bytes
Variable Size 922750752 bytes
Database Buffers 4076863488 bytes
Redo Buffers 14745600 bytes
Database mounted.
aDatabase opened.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /ora_data/cpntest/archive
Oldest online log sequence 62
Next log sequence to archive 64
Current log sequence 64
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
注意：
如果是oracle9i，還需要更改如下參數：
alter system set log_archive_start=true scope=spfile;
但是如果在10g中也更改這些參數，數據庫重啓時會有如下提示：
ORA-32004: obsolete and/or deprecated parameter(s) specified
alter system set log_archive_format='%t_%s.dbf' scope=spfile;
但是如果在10g中也更改這些參數，數據庫會不能啓動，如下提示：
ORA-32004: obsolete and/or deprecated parameter(s) specified
ORA-19905: log_archive_format must contain %s, %t and %r
本文來自：韋少乾博客(mven.cn)
詳細出處：http://mven.cn/post/41.html