oracle修改闪回日志的位置

改变闪回日志位置的步骤:

A.Change the value of the DB_RECOVERY_FILE_DEST initialization parameter to a new value.
B.Shutdown the instance.
C.Start the instance and mount the database.
D.Execute the ALTER DATABASE FLASHBACK OFF command.
E.Execute the ALTER DATABASE FLASHBACK ON command.
F.Open the database.

SQL> select instance_name from v$instance;

INSTANCE_NAME
--------------------------------
orcl2

SQL> show parameter recover

NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
db_recovery_file_dest string I:ORCL2flash_recovery_area
db_recovery_file_dest_size big integer 3912M
recovery_parallelism integer 0
SQL> alter system set db_recovery_file_dest='I:flash_recovery_areaORCL2';

系统已更改。

SQL> show parameter recover

NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
db_recovery_file_dest string I:flash_recovery_areaORCL2
db_recovery_file_dest_size big integer 3912M
recovery_parallelism integer 0
SQL>

SQL> conn / as sysdba;
已连接。
SQL> shutdown immediate;
数据库已经关闭。
已经卸载数据库。
ORACLE 例程已经关闭。
SQL> startup mount;
ORACLE 例程已经启动。

Total System Global Area 1586708480 bytes
Fixed Size 2176128 bytes
Variable Size 1090521984 bytes
Database Buffers 486539264 bytes
Redo Buffers 7471104 bytes
数据库装载完毕。
SQL> select flashback_on from v$database;

FLASHBACK_ON
------------------------------------
NO

SQL> alter database flashback off;

数据库已更改。

SQL> alter database flashback on;

数据库已更改。

SQL> select flashback_on from v$database;

FLASHBACK_ON
------------------------------------
YES

SQL> alter database open;

数据库已更改。

SQL> select flashback_on from v$database;

FLASHBACK_ON
------------------------------------
YES

SQL>

原文地址:https://www.cnblogs.com/rusking/p/4329070.html