使用DBMS_FILE_TRANSFER迁移ASM中的表空间和数据文件
使用DBMS_FILE_TRANSFER迁移ASM中的表空间和数据文件
这是一个存储过程包，是除了RMAN之外又一个用于执行迁移任务的工具包，
可以完成如下的迁移：ASM->ASM、ASM->OS Flie、OS File->ASM、OS File->OS File。
可以完成如下的迁移：ASM->ASM、ASM->OS Flie、OS File->ASM、OS File->OS File。
使用DBMS_FILE_TRANSFER迁移表空间和数据文件
从文件系统到ASM
SQL> select name from v$datafile;
www.zzzyk.com
NAME
--------------------------------------------------------------------------------
/u01/oracle/10g/oradata/gt10g/system01.dbf
/u01/oracle/10g/oradata/gt10g/undotbs1.dbf
/u01/oracle/10g/oradata/gt10g/sysaux01.dbf
/u01/oracle/10g/oradata/gt10g/users01.dbf
/u01/oracle/10g/oradata/gt10g/gtlions01.dbf
/u01/oracle/10g/oradata/gt10g/gtlions02.dbf
6 rows selected.
SQL> alter tablespace gtlions offline;
Tablespace altered.
SQL> begin dbms_file_transfer.copy_file('dir1','gtlions01.dbf','dir2','gtlions01.dbf'); end;
2 /
PL/SQL procedure successfully completed.
SQL> begin dbms_file_transfer.copy_file('dir1','gtlions02.dbf','dir2','gtlions02.dbf'); end;
2 /
PL/SQL procedure successfully completed.
SQL> alter database rename file'/u01/oracle/10g/oradata/gt10g/gtlions01.dbf' to'+DATA01/gt10g/datafile/gtlions01.dbf';
Database altered.
SQL> alter database rename file'/u01/oracle/10g/oradata/gt10g/gtlions02.dbf' to'+DATA01/gt10g/datafile/gtlions02.dbf';
Database altered.
SQL> alter tablespace gtlions online;
Tablespace altered.
SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
/u01/oracle/10g/oradata/gt10g/system01.dbf
/u01/oracle/10g/oradata/gt10g/undotbs1.dbf
/u01/oracle/10g/oradata/gt10g/sysaux01.dbf
/u01/oracle/10g/oradata/gt10g/users01.dbf
+DATA01/gt10g/datafile/gtlions01.dbf
+DATA01/gt10g/datafile/gtlions02.dbf
6 rows selected.
SQL>
从ASM到文件系统
SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
/u01/oracle/10g/oradata/gt10g/system01.dbf
/u01/oracle/10g/oradata/gt10g/undotbs1.dbf
/u01/oracle/10g/oradata/gt10g/sysaux01.dbf
/u01/oracle/10g/oradata/gt10g/users01.dbf
+DATA01/gt10g/datafile/gtlions.263.808393465
+DATA01/gt10g/datafile/gtlions.262.808393513
6 rows selected.
--我们将迁移表空间gtlions的两个数据文件
--创建源和目标目录
SQL> create or replace directory dir1 as'/u01/oracle/10g/oradata/gt10g/';
Directory created.
SQL> create or replace directory dir2 as'+DATA01/gt10g/datafile/';
Directory created.
SQL> desc dbms_file_transfer;
PROCEDURE COPY_FILE
ArgumentName Type In/Out Default?
----------------------------------------------------- ------ --------
SOURCE_DIRECTORY_OBJECT VARCHAR2 IN
SOURCE_FILE_NAME VARCHAR2 IN
DESTINATION_DIRECTORY_OBJECT VARCHAR2 IN
DESTINATION_FILE_NAME VARCHAR2 IN
PROCEDURE GET_FILE
ArgumentName Type In/Out Default?
----------------------------------------------------- ------ --------
SOURCE_DIRECTORY_OBJECT VARCHAR2 IN
SOURCE_FILE_NAME VARCHAR2 IN
SOURCE_DATABASE VARCHAR2 IN
DESTINATION_DIRECTORY_OBJECT VARCHAR2 IN
DESTINATION_FILE_NAME VARCHAR2 IN
PROCEDURE PUT_FILE
ArgumentName Type In/Out Default?
----------------------------------------------------- ------ --------
SOURCE_DIRECTORY_OBJECT VARCHAR2 IN
SOURCE_FILE_NAME VARCHAR2 IN
DESTINATION_DIRECTORY_OBJECT VARCHAR2 IN
DESTINATION_FILE_NAME VARCHAR2 IN
DESTINATION_DATABASE VARCHAR2 IN
--开始传输文件
SQL> begin
2 dbms_file_transfer.copy_file('dir2','gtlions.263.808393465','dir1','gtlions01.dbf');
3 end;
4 /
PL/SQL procedure successfully completed.
SQL> begin
2 dbms_file_transfer.copy_file('dir2','gtlions.262.808393513','dir1','gtlions02.dbf');
3 end;
4 /
PL/SQL procedure successfully completed.
--重新定位文件位置
SQL> alter database rename file'+DATA01/gt10g/datafile/gtlions.263.808393465' to'/u01/oracle/10g/oradata/gt10g/gtlions01.dbf';
Database altered.
SQL> alter database rename file'+DATA01/gt10g/datafile/gtlions.262.808393513' to '/u01/oracle/10g/oradata/gt10g/gtlions02.dbf';
Database altered.
SQL> alter tablespace gtlions online;
Tablespace altered.
SQL> select name from v$datafile;
NAME
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