方法一:
1.将数据文件的状态offline
SQL> select file_name,tablespace_name from dba_data_files where file_name like ‘%user%‘; FILE_NAME -------------------------------------------------------------------------------- TABLESPACE_NAME ------------------------------ /u01/app/oracle/oradata/ORA11GR2/users01.dbf USERS SQL> alter tablespace users offline; Tablespace altered. SQL> select name,status from v$datafile; NAME -------------------------------------------------------------------------------- STATUS -------------------------------------------------- /u01/app/oracle/oradata/ORA11GR2/system01.dbf SYSTEM /u01/app/oracle/oradata/ORA11GR2/sysaux01.dbf ONLINE /u01/app/oracle/oradata/ORA11GR2/undotbs01.dbf ONLINE NAME -------------------------------------------------------------------------------- STATUS -------------------------------------------------- /u01/app/oracle/oradata/ORA11GR2/users01.dbf OFFLINE /u01/app/oracle/oradata/ORA11GR2/example01.dbf ONLINE
2.操作系统层面完成真正mv改名操作
SQL> ! mv /u01/app/oracle/oradata/ORA11GR2/users01.dbf /u01/app/oracle/oradata/ORA11GR2/users01_bak.dbf
3.数据库层面修改数据文件名--->告诉数据库
SQL> alter database rename file 2 ‘/u01/app/oracle/oradata/ORA11GR2/users01.dbf‘ to 3 ‘/u01/app/oracle/oradata/ORA11GR2/users01_bak.dbf‘; Database altered.
4.把更改完之后的文件置为Online对外提供服务
表空间->online
SQL> alter tablespace users online; Tablespace altered. SQL> select name,status from v$datafile; NAME STATUS -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -------------------------------------------------- /u01/app/oracle/oradata/ORA11GR2/system01.dbf SYSTEM /u01/app/oracle/oradata/ORA11GR2/sysaux01.dbf ONLINE /u01/app/oracle/oradata/ORA11GR2/undotbs01.dbf ONLINE /u01/app/oracle/oradata/ORA11GR2/users01_bak.dbf ONLINE /u01/app/oracle/oradata/ORA11GR2/example01.dbf ONLINE
方法二:(适用所有数据文件,但是系统文件只能用这种方式)
1、shutdown 关库
SQL> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down.
2.操作系统层面真正执行mv
SQL> ! mv /u01/app/oracle/oradata/ORA11GR2/users01_bak.dbf /u01/app/oracle/oradata/ORA11GR2/users01.dbf
3.启动到mount
SQL> startup mount ORACLE instance started. Total System Global Area 830930944 bytes Fixed Size 2257800 bytes Variable Size 536874104 bytes Database Buffers 289406976 bytes Redo Buffers 2392064 bytes Database mounted.
4.先通知数据库要更改数据库的结构-->rename
SQL> alter database rename file 2 ‘/u01/app/oracle/oradata/ORA11GR2/users01_bak.dbf‘ to 3 ‘/u01/app/oracle/oradata/ORA11GR2/users01.dbf‘; Database altered. SQL> alter database open; Database altered.
时间: 2024-08-24 08:23:33