在Oracle12.1之前的版本中要重命名數據文件或移動數據文件需要關閉數據庫或把表空間/數據文件置為offline狀態才可以，參考之前總結的

要實現這一功能需要使用ALTERDATABASEMOVEDATAFILE語句，語法如下ALTER?DATABASE?MOVE?DATAFILE?(?'filename'?|?'ASM_filename'?|?file_number?)

[?TO?(?'filename'?|?'ASM_filename'?)?]

[?REUSE?]?[?KEEP?]

下面在12.2版本測試這一功能zx@ORA12C>select?*?from?v$version;

BANNER?????CON_ID

--------------------------------------------------------------------------------?----------

Oracle?Database?12c?Enterprise?Edition?Release?12.2.0.1.0?-?64bit?Production??0

PL/SQL?Release?12.2.0.1.0?-?Production??0

CORE12.2.0.1.0Production??0

TNS?for?Linux:?Version?12.2.0.1.0?-?Production??0

NLSRTL?Version?12.2.0.1.0?-?Production??0

1、創建測試表空間及數據文件：sys@ORA12C>create?tablespace?t_move?datafile?'/home/oracle/t_move.dbf'?size?50m?;

Tablespace?created.

sys@ORA12C>col?name?for?a50

sys@ORA12C>select?d.name,d.status?from?v$datafile?d,v$tablespace?t?where?t.ts#=d.ts#?and?t.name='T_MOVE';

NAME???STATUS

--------------------------------------------------?-------

/home/oracle/t_move.dbf????ONLINE

現在數據文件'/home/oracle/t_move.dbf'為ONLINE狀態

2、執行重命名操作sys@ORA12C>alter?database?move?datafile?'/home/oracle/t_move.dbf'?to?'/home/oracle/t_move01.dbf';

Database?altered.

sys@ORA12C>select?d.name,d.status?from?v$datafile?d,v$tablespace?t?where?t.ts#=d.ts#?and?t.name='T_MOVE';

NAME???STATUS

--------------------------------------------------?-------

/home/oracle/t_move01.dbf???ONLINE

sys@ORA12C>!ls?-l?/home/oracle/t_move01.dbf

-rw-r-----?1?oracle?oinstall?52436992?Jul?11?16:07?/home/oracle/t_move01.dbf

sys@ORA12C>!ls?-l?/home/oracle/t_move.dbf

ls:?cannot?access?/home/oracle/t_move.dbf:?No?such?file?or?directory

可以看到文件名從t_move.dbf改為了t_move01.dbf，原文件已經不存在了。

3、執行移動目錄操作sys@ORA12C>alter?database?move?datafile?'/home/oracle/t_move01.dbf'?to?'/u01/app/oracle/oradata/ora12c/t_move01.dbf';

Database?altered.

sys@ORA12C>!ls?-l?/u01/app/oracle/oradata/ora12c/t_move01.dbf

-rw-r-----?1?oracle?oinstall?52436992?Jul?11?16:10?/u01/app/oracle/oradata/ora12c/t_move01.dbf

sys@ORA12C>!ls?-l?/home/oracle/t_move01.dbf

ls:?cannot?access?/home/oracle/t_move01.dbf:?No?such?file?or?directory

sys@ORA12C>select?d.name,d.status?from?v$datafile?d,v$tablespace?t?where?t.ts#=d.ts#?and?t.name='T_MOVE';

NAME???STATUS

--------------------------------------------------?-------

/u01/app/oracle/oradata/ora12c/t_move01.dbf???ONLINE

從上面的結果可以看到數據文件從'/home/oracle'目錄移動到了'/u01/app/oracle/oradata/ora12c'目錄下了。

4、copy數據文件到目標目錄，保留原文件sys@ORA12C>alter?database?move?datafile??'/u01/app/oracle/oradata/ora12c/t_move01.dbf'?to?'/home/oracle/t_move01.dbf'?keep;

Database?altered.

sys@ORA12C>select?d.name,d.status?from?v$datafile?d,v$tablespace?t?where?t.ts#=d.ts#?and?t.name='T_MOVE';

NAME???STATUS

--------------------------------------------------?-------

/home/oracle/t_move01.dbf???ONLINE

sys@ORA12C>!ls?-l?/home/oracle/t_move01.dbf

-rw-r-----?1?oracle?oinstall?52436992?Jul?11?16:15?/home/oracle/t_move01.dbf

sys@ORA12C>!ls?-l?/u01/app/oracle/oradata/ora12c/t_move01.dbf

-rw-r-----?1?oracle?oinstall?52436992?Jul?11?16:15?/u01/app/oracle/oradata/ora12c/t_move01.dbf

從上面的結果可以看到數據文件改為了/home/oracle/t_move01.dbf，但原來的數據文件仍然被保留。

5、移動數據文件到ASM存儲--文件系統到ASM

ALTER?DATABASE?MOVE?DATAFILE?'/u01/oracle/rbdb1/user1.dbf'

TO?'+dgroup_01/data/orcl/datafile/user1.dbf';

--ASM到ASM

ALTER?DATABASE?MOVE?DATAFILE?'+dgroup_01/data/orcl/datafile/user1.dbf'

TO?'+dgroup_02/data/orcl/datafile/user1.dbf';

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