oracle如何移动datafile的位置

oracle如何移动datafile的位置?

[root@sc ~]# su - oracle
[oracle@sc ~]$ sqlplus / as sysdba
SQL> archive log list
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            /recovery/arch
Oldest online log sequence     85
Next log sequence to archive   87
Current log sequence           87

SQL> select name from v$datafile;

NAME
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/ocp/system01.dbf
/u01/app/oracle/oradata/ocp/undotbs01.dbf
/u01/app/oracle/oradata/ocp/sysaux01.dbf
/u01/app/oracle/oradata/ocp/users01.dbf
/u01/app/oracle/oradata/ocp/example01.dbf
/u01/app/oracle/oradata/ocp/perstat.dbf

SQL> select tablespace_name,status from dba_tablespaces;

TABLESPACE_NAME                STATUS
------------------------------ ---------
SYSTEM                         ONLINE
UNDOTBS1                       ONLINE
SYSAUX                         ONLINE
TEMP                           ONLINE
USERS                          ONLINE
EXAMPLE                        ONLINE
PERSTAT                        ONLINE

第一步,将表空间offline
SQL> alter tablespace perstat offline;--如果是多个文件，则会同时变成offline

Tablespace altered.

自己手动拷贝文件到新的目录，并使用rename修改数据文件的地址属性,可以同时移动一个表空间下的多个数据库文件
[oracle@sc ~]$ cp /u01/app/oracle/oradata/ocp/perstat.dbf /u01/app/oracle/oradata/perstat.dbf
SQL> alter tablespace perstat rename datafile '/u01/app/oracle/oradata/ocp/perstat.dbf' to '/u01/app/oracle/oradata/perstat.dbf';

Tablespace altered.

将表空间online
SQL> alter tablespace perstat online;

Tablespace altered.

SQL> select name from v$datafile;

NAME
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/ocp/system01.dbf
/u01/app/oracle/oradata/ocp/undotbs01.dbf
/u01/app/oracle/oradata/ocp/sysaux01.dbf
/u01/app/oracle/oradata/ocp/users01.dbf
/u01/app/oracle/oradata/ocp/example01.dbf
/u01/app/oracle/oradata/perstat.dbf