ORACLE 使用dbms_file_transfer 包迁移表空间或文件

18:41:05 sales@orcl> CREATE DIRECTORY  data_src AS '+DATAL_MDG/orcl/datafile';

Directory created

18:41:48 sales@orcl>

Directory created

18:41:59 sales@orcl> CREATE TABLESPACE tt_tabspa DATAFILE '+DATAL_MDG' SIZE 1G;

Tablespace created

18:42:20 sales@orcl> SELECT a.file_name,a.tablespace_name,a.bytes/1024/1024/1024 sz  FROM Dba_Data_Files a WHERE a.tablespace_name='TT_TABSPA';

FILE_NAME                                                                        TABLESPACE_NAME                        SZ
-------------------------------------------------------------------------------- ------------------------------ ----------
+DATAL_MDG/orcl/datafile/tt_tabspa.3604.929990537                       TT_TABSPA                               1

18:42:39 sales@orcl> alter tablespace TT_TABSPA OFFLINE;

Tablespace altered

18:43:21 sales@orcl>

18:44:03 sales@orcl>  begin
2   dbms_file_transfer.copy_file('data_src','tt_tabspa.3604.929990537','data_target','tt_tabspa2.dbf');
3   end;
4  /

PL/SQL procedure successfully completed

18:44:06 sales@orcl>
18:45:21 sales@orcl>  alter database  rename file'+DATAL_MDG/orcl/datafile/tt_tabspa.3604.929990537'
2    TO '+DATA_SALSES_MDG/orcl/datafile/tt_tabspa2.dbf';

Database altered

18:45:21 sales@orcl>
18:45:22 sales@orcl> alter tablespace TT_TABSPA online;

Tablespace altered

18:45:39 sales@orcl>
18:46:04 sales@orcl> SELECT a.file_name,a.tablespace_name,a.bytes/1024/1024/1024 sz ,a.status FROM Dba_Data_Files a WHERE a.tablespace_name='TT_TABSPA';

FILE_NAME                                                                        TABLESPACE_NAME                        SZ STATUS
-------------------------------------------------------------------------------- ------------------------------ ---------- ---------
+DATA_SALSES_MDG/orcl/datafile/tt_tabspa2.dbf                               TT_TABSPA                               1 AVAILABLE

18:46:04 sales@orcl>
18:46:04 sales@orcl> SELECT a.tablespace_name,a.status FROM Dba_Tablespaces a WHERE a.tablespace_name='TT_TABSPA';

TABLESPACE_NAME                STATUS
------------------------------ ---------
TT_TABSPA                      ONLINE

18:46:45 sales@orcl>

18:50:04 sales@orcl> DROP DIRECTORY  data_src;

Directory dropped

18:50:19 sales@orcl> DROP DIRECTORY  data_target;

Directory dropped

18:50:29 sales@orcl>