Oracle 设置归档与非归档模式

数据库|mysql教程

Oracle教程,Oracle 设置归档与非归档模式,数据库

数据库-mysql教程

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－，查看oracle归档模式SQLgt; conn evan/evan (dba)Connected.SQLgt; archive log listORA-01031: insufficient privilegesS

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－，查看Oracle归档模式
SQL> conn evan/evan (dba)
Connected.
SQL> archive log list
ORA-01031: insufficient privileges

SQL> conn / as sysdba –archive log list需要以sysdba执行
Connected.
SQL> archive log list
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 2
Current log sequence 4
查询v$database
SQL> select name,log_mode from v$database;

NAME LOG_MODE
——— ————
ORALIFE NOARCHIVELOG

二，修改归档模式
归档日志位置,Oracle 10g可以生成多份一样的日志，保存多个位置，，以防不测
SQL> alter system set log_archive_dest_1=’location=/oracle/10g/oracle/log/archive_log’;

System altered.

SQL> alter system set log_archive_dest_2=’location=/oracle/10g/oracle/log/archive_log2′;

System altered.

SQL> shutdown immediate
ORA-01031: insufficient privileges
SQL> conn / as sysdba
Connected.
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.

Database altered.

SQL> alter database open;

Database altered.

配置归档文件格式(从oracle 10g 开始，必须带有%s,%t,%r)
SQL> alter system set log_archive_format=”archive_%t_%s_%r.arclog” scope=spfile;

System altered.

SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.

Total System Global Area 528482304 bytes
Fixed Size 1220360 bytes
Variable Size 163578104 bytes
Database Buffers 356515840 bytes
Redo Buffers7168000 bytes
Database mounted.
SQL> archive log list －－查看是否归档
Database log mode Archive Mode
Automatic archival Enabled －－已开启自动归档
Archive destination /oracle/10g/oracle/log/archive_log2
Oldest online log sequence 2
Next log sequence to archive 4
Current log sequence 4

SQL> select destination from v$archive_dest; －－查看归档日志位置

DESTINATION
——————————————————————————–
/oracle/10g/oracle/log/archive_log
/oracle/10g/oracle/log/archive_log2

10 rows selected.

还可以配置归档进程个数
alter system set log_archive_max_processes=n

Oracle 设置归档与非归档模式 Oracle教程