Oracle学习系列—归档模式的切换

SQL*Plus: Release 9.2.0.1.0 - Production on Wed Mar 14 00:31:13 2007
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

REM以系统管理员用户登陆Oracle，并启动到mount状态
SQL> connect as sysdba;
Enter user-name: sys
Enter password:
Connected to an idle instance.

SQL> startup mount;

ORACLE instance started

Total System Global Area 152115804 bytes
Fixed Size 453212 bytes
Variable Size 117440512 bytes
Database Buffers 33554432 bytes
Redo Buffers 667648

Database mounted.

REM操作设置数据库为归档模式SQL> alter database archivelog;
Database altered.

REM查看归档状态

SQL> archive log list;

Database log mode Archive Mode
Automatic archival Disabled

Archive destination C:/UserDefine/oracle/ora92/RDBMS
Oldest online log sequence 7
Next log sequence to archive

Current log sequence 9

REM打开数据库
SQL> alter database open;
Database altered.

REM修改log_archive_dest归档路径参数

SQL> alter system set log_archive_dest='C:/UserDefine/oracle/ora92/database/arch'

System altered.

REM修改log_archive_start归档启动参数
SQL> alter system set log_archive_start=true scope=spfile;
System altered.

REM修改后关闭重启，查看相应的状态ITP
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.

SQL> startup
ORACLE instance started.
Total System Global Area 152115804 bytes
Fixed Size 453212 bytes
Variable Size 117440512 bytes

Database Buffers 33554432 bytes
Redo Buffers 667648 bytes
Database mounted.
Database opened.

REM显示归档各个参数的值
SQL> show parameter archive;

NAME TYPE VALUE
archive_lag_target integer 0
log_archive_dest string C:

/UserDefine/oracle/ora92/dat
abase/archive
log_archive_dest_1 string
log_archive_dest_10 string
+Q%Z.eiAp:Z0 log_archive_dest_2 string
log_archive_dest_3 string

log_archive_dest_4 string
log_archive_dest_5 string
log_archive_dest_6 string
log_archive_dest_7 string

NAME TYPE VALUE
log_archive_dest_8 string
log_archive_dest_9 string

log_archive_dest_state_1 string enable
log_archive_dest_state_10 string enable

log_archive_dest_state_2 string enable

log_archive_dest_state_3 string enable

log_archive_dest_state_4 string enable
log_archive_dest_state_5 string enable
log_archive_dest_state_6 string enable
log_archive_dest_state_7 string enable
log_archive_dest_state_8 string enable

NAME TYPE VALUE

log_archive_dest_state_9 string enable
log_archive_duplex_dest string
log_archive_format string ARC%S.%T
log_archive_max_processes integer 2
log_archive_min_succeed_dest integer 1
log_archive_start boolean TRUE
log_archive_trace integer 0

remote_archive_enable string true
standby_archive_dest string %ORACLE_HOME%RDBMS

REM从实例数据字典表查看归档状态
SQL>select archiver from v$instance

ARCHIVE
-------

REM从数据库数据字典表查看归档状态
SQL>select log_mode from v$database
LOG_MODE
-----------
ARCHIVELOG