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11G and before
分為不停機(jī)和停機(jī)兩種方式：
一、不停機(jī)移動(dòng)數(shù)據(jù)文件
完整步驟：
1、確認(rèn)開啟歸檔模式
2、offline數(shù)據(jù)文件
3、物理層移動(dòng)數(shù)據(jù)文件（可重命名）
4、邏輯層rename數(shù)據(jù)文件路徑及名稱
5、recover恢復(fù)數(shù)據(jù)文件
6、online數(shù)據(jù)文件
--開啟歸檔模式
SQL> archive log list
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination /archivelog
Oldest online log sequence 1
Current log sequence 2
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>
SQL>
SQL> startup mount
ORACLE instance started.
Total System Global Area 1603411968 bytes
Fixed Size 2253664 bytes
Variable Size 452988064 bytes
Database Buffers 1140850688 bytes
Redo Buffers 7319552 bytes
Database mounted.
SQL> alter database archivelog;
Database altered.
SQL> alter database open;
Database altered.
--offline數(shù)據(jù)文件
SQL> /
FILE# NAME STATUS
---------- ------------------------------------------------------------ -------
1 /oradata/orcl11g/system01.dbf SYSTEM
2 /oradata/orcl11g/sysaux01.dbf ONLINE
3 /oradata/orcl11g/undotbs01.dbf ONLINE
4 /oradata/orcl11g/users01.dbf ONLINE
5 /oradata/orcl11g/example01.dbf ONLINE
6 /oradata/orcl11g/test01.dbf ONLINE
7 /oradata/ORCL11G/datafile/o1_mf_test_j7jgpq7k_.dbf ONLINE
7 rows selected.
SQL> alter database datafile 7 offline;
Database altered.
--物理層移動(dòng)數(shù)據(jù)文件
SQL> !mv /oradata/ORCL11G/datafile/o1_mf_test_j7jgpq7k_.dbf /oradata/orcl11g/test02.dbf
SQL> !ls /oradata/orcl11g/test02.dbf
/oradata/orcl11g/test02.dbf
--邏輯層rename數(shù)據(jù)文件
SQL> alter database rename file '/oradata/ORCL11G/datafile/o1_mf_test_j7jgpq7k_.dbf' to '/oradata/orcl11g/test02.dbf';
Database altered.
--恢復(fù)數(shù)據(jù)文件
SQL> recover datafile 7;
Media recovery complete.
--online數(shù)據(jù)文件
SQL> alter database datafile 7 online;
Database altered.
SQL> select file#,name,status from v$datafile;
FILE# NAME STATUS
---------- ------------------------------------------------------------ -------
1 /oradata/orcl11g/system01.dbf SYSTEM
2 /oradata/orcl11g/sysaux01.dbf ONLINE
3 /oradata/orcl11g/undotbs01.dbf ONLINE
4 /oradata/orcl11g/users01.dbf ONLINE
5 /oradata/orcl11g/example01.dbf ONLINE
6 /oradata/orcl11g/test01.dbf ONLINE
7 /oradata/orcl11g/test02.dbf ONLINE
7 rows selected.
二、停機(jī)移動(dòng)數(shù)據(jù)文件
完整步驟：
1、關(guān)閉數(shù)據(jù)庫
2、物理層移動(dòng)數(shù)據(jù)文件（可重命名）
3、開啟數(shù)據(jù)庫到mount
4、邏輯層rename數(shù)據(jù)文件路徑及名稱
5、開啟數(shù)據(jù)庫
--創(chuàng)建一個(gè)TEST表空間，發(fā)現(xiàn)建在了/oradata/ORCL11G/下，希望移動(dòng)到/oradata/orcl11g/下
SQL> create tablespace TEST;
Tablespace created.
SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
/oradata/orcl11g/system01.dbf
/oradata/orcl11g/sysaux01.dbf
/oradata/orcl11g/undotbs01.dbf
/oradata/orcl11g/users01.dbf
/oradata/orcl11g/example01.dbf
/oradata/ORCL11G/datafile/o1_mf_test_j7jfm30c_.dbf
--嘗試在線移動(dòng)數(shù)據(jù)文件
SQL> alter database rename file '/oradata/ORCL11G/datafile/o1_mf_test_j7jfm30c_.dbf' to '/oradata/orcl11g/test01.dbf';
alter database rename file '/oradata/ORCL11G/datafile/o1_mf_test_j7jfm30c_.dbf' to '/oradata/orcl11g/test01.dbf'
*
ERROR at line 1:
ORA-01511: error in renaming log/data files
ORA-01121: cannot rename database file 6 - file is in use or recovery
ORA-01110: data file 6: '/oradata/ORCL11G/datafile/o1_mf_test_j7jfm30c_.dbf'
--報(bào)錯(cuò)ORA-01121
[oracle@orcl11g:/home/oracle]$ oerr ORA 01121
01121, 00000, "cannot rename database file %s - file is in use or recovery"
// *Cause: Attempted to use ALTER DATABASE RENAME to rename a
// datafile that is online in an open instance or is being recovered.
// *Action: Close database in all instances and end all recovery sessions.
明確無法在線移動(dòng)數(shù)據(jù)文件，需要關(guān)閉數(shù)據(jù)庫。
--操作系統(tǒng)層面移動(dòng)數(shù)據(jù)文件，并且重命名
[oracle@orcl11g:/oradata/ORCL11G/datafile]$ ll
total 102408
-rw-r----- 1 oracle oinstall 104865792 Apr 15 20:55 o1_mf_test_j7jfm30c_.dbf
[oracle@orcl11g:/oradata/ORCL11G/datafile]$ mv o1_mf_test_j7jfm30c_.dbf /oradata/orcl11g/
control01.ctl example01.dbf redo01.log redo02.log redo03.log sysaux01.dbf system01.dbf temp01.dbf undotbs01.dbf users01.dbf
[oracle@orcl11g:/oradata/ORCL11G/datafile]$ mv o1_mf_test_j7jfm30c_.dbf /oradata/orcl11g/test01.dbf
[oracle@orcl11g:/oradata/ORCL11G/datafile]$ ll /oradata/orcl11g/test01.dbf
--開啟數(shù)據(jù)庫到mount
SQL> startup mount
ORACLE instance started.
Total System Global Area 1603411968 bytes
Fixed Size 2253664 bytes
Variable Size 452988064 bytes
Database Buffers 1140850688 bytes
Redo Buffers 7319552 bytes
Database mounted.
--rename數(shù)據(jù)文件名稱
SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
/oradata/orcl11g/system01.dbf
/oradata/orcl11g/sysaux01.dbf
/oradata/orcl11g/undotbs01.dbf
/oradata/orcl11g/users01.dbf
/oradata/orcl11g/example01.dbf
/oradata/ORCL11G/datafile/o1_mf_test_j7jfm30c_.dbf
6 rows selected.
SQL> alter database rename file '/oradata/ORCL11G/datafile/o1_mf_test_j7jfm30c_.dbf' to '/oradata/orcl11g/test01.dbf';
Database altered.
SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
/oradata/orcl11g/system01.dbf
/oradata/orcl11g/sysaux01.dbf
/oradata/orcl11g/undotbs01.dbf
/oradata/orcl11g/users01.dbf
/oradata/orcl11g/example01.dbf
/oradata/orcl11g/test01.dbf
6 rows selected.
--開啟數(shù)據(jù)庫
SQL> alter database open;
Database altered.
12C and later
支持在線移動(dòng)數(shù)據(jù)文件：
可參考：Online Move Datafile in Oracle Database 12c Release 1 (12.1)
語法如下：
ALTER DATABASE MOVE DATAFILE ( 'filename' | 'ASM_filename' | file_number )
[ TO ( 'filename' | 'ASM_filename' ) ]
[ REUSE ] [ KEEP ]原文鏈接：https://juejin.cn/post/7035087468391038989
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