数据库：oracle 19.3
系统：windows 11
测试目标：此前介绍过非关键数据文件的位置修改，现在来介绍数据库关键数据文件位置的修改.
处理SYSAUX表空间：
SQL> select file_name,bytes/1024/1024,autoextensible,tablespace_name from dba_data_files where tablespace_name='SYSAUX'

FILE_NAME                                                    BYTES/1024/1024 AUTOEX TABLESPACE_NAME
------------------------------------------------------------ --------------- ------ ------------------------------------------------------------
F:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSAUX01.DBF                          1740 YES    SYSAUX
SQL> alter tablespace sysaux offline;

表空间已更改。
说明：此时在系统层面将F:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSAUX01.DBF复制到F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST\SYSAUX01.DBF
SQL> alter tablespace sysaux rename datafile 'F:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSAUX01.DBF' to 'F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST\SYSAUX01.DBF';

表空间已更改。

SQL> alter tablespace sysaux online;

表空间已更改。

SQL> select file_name,autoextensible,bytes/1024/1024,tablespace_name from dba_data_files where tablespace_name='SYSAUX';

FILE_NAME                                                    AUTOEX BYTES/1024/1024 TABLESPACE_NAME
------------------------------------------------------------ ------ --------------- ------------------------------------------------------------
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST\SYSAUX01.DBF          YES               1740 SYSAUX

处理SYSTEM表空间：
SQL> alter tablespace system offline;
alter tablespace system offline
*
第 1 行出现错误:
ORA-01541: 系统表空间无法脱机; 如有必要请关闭

SQL> alter database datafile 'E:\DMP\SYSTEM02.DBF' offline;
alter database datafile 'E:\DMP\SYSTEM02.DBF' offline
*
第 1 行出现错误:
ORA-01541: 系统表空间无法脱机; 如有必要请关闭

说明：关键数据文件无法离线

SQL> select name from v$datafile

NAME
------------------------------------------------------------
F:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSTEM01.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST02.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST\SYSAUX01.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\UNDOTBS01.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST01.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS01.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS02.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS03.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS04.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS05.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS06.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS07.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\RMAN_TS01.DBF
E:\DMP\SYSTEM02.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST03.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST04.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST05.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS10.DBF

已选择 18 行。

SQL> select tablespace_name,status from dba_tablespaces;

TABLESPACE_NAME                                              STATUS
------------------------------------------------------------ ------------------
SYSTEM                                                       ONLINE
SYSAUX                                                       ONLINE
UNDOTBS1                                                     ONLINE
TEMP                                                         ONLINE
USERS                                                        ONLINE
TEST                                                         ONLINE
TSP_ORDADM                                                   ONLINE
TSP_ORDADM1                                                  ONLINE
RMAN_TS                                                      ONLINE
LOCAL_TEMP                                                   ONLINE

已选择 10 行。

SQL> shutdown immediate;
数据库已经关闭。
已经卸载数据库。
ORACLE 例程已经关闭。
SQL> startup mount;
ORACLE 例程已经启动。

Total System Global Area 1.2583E+10 bytes
Fixed Size                 12581272 bytes
Variable Size            4194304000 bytes
Database Buffers         8355053568 bytes
Redo Buffers               20971520 bytes
数据库装载完毕。
说明：此时将E:\DMP\SYSTEM02.DBF复制成F:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSTEM02.DBF
SQL> alter database rename file 'E:\DMP\SYSTEM02.DBF' to 'F:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSTEM02.DBF';

数据库已更改。

SQL> alter database open;

数据库已更改。

SQL> select name from v$datafile;

NAME
------------------------------------------------------------
F:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSTEM01.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST02.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST\SYSAUX01.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\UNDOTBS01.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST01.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS01.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS02.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS03.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS04.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS05.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS06.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS07.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\RMAN_TS01.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSTEM02.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST03.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST04.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\TEST05.DBF
F:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS10.DBF

已选择 18 行。
结论：已成功将系统关键数据文件转移到F:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSTEM02.DBF