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在非归档模式下如何更改数据文件位置

2011-09-19 09:32 447 查看

如果数据库处于非归档模式下，可以通过如下步骤更改文件路径:

1.关闭数据库

2.系统级进行文件复制

3.启动数据库到mount状态

3.通过SQL修改数据文件位置

4.打开数据库

以下是实际操作的步骤示范：

1.数据库处于非归档模式

SQL> archive log list;
Database log mode              No Archive Mode
Automatic archival             Enabled
Archive destination            /opt/oracle/oradata/conner/archive
Oldest online log sequence     150
Current log sequence           153

2.需要移动test.dbf文件

SQL> select name from v$datafile;

NAME
------------------------------------------------------------
/opt/oracle/oradata/conner/system01.dbf
/opt/oracle/oradata/conner/undotbs01.dbf
/opt/oracle/oradata/conner/users01.dbf
/opt/oracle/test.dbf

3.关闭数据库

SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.

4.复制文件到新的位置

SQL> ! cp /opt/oracle/test.dbf /opt/oracle/oradata/conner/test.dbf

5.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.
SQL> select name from v$datafile;

NAME
-----------------------------------------------------------
/opt/oracle/oradata/conner/system01.dbf
/opt/oracle/oradata/conner/undotbs01.dbf
/opt/oracle/oradata/conner/users01.dbf
/opt/oracle/test.dbf

6.修改文件位置

SQL> alter database rename file '/opt/oracle/test.dbf' to '/opt/oracle/oradata/conner/test.dbf';

Database altered.

SQL> alter database open;

Database altered.

SQL> select name from v$datafile;

NAME
----------------------------------------------------------------
/opt/oracle/oradata/conner/system01.dbf
/opt/oracle/oradata/conner/undotbs01.dbf
/opt/oracle/oradata/conner/users01.dbf
/opt/oracle/oradata/conner/test.dbf

SQL>

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