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1.关闭数据库
oracle@mumuso ~]$ sqlplus /nolog SQL*Plus: Release 11.2.0.4.0 Production on Fri Sep 9 10:21:34 2016 Copyright (c) 1982, 2013, Oracle. All rights reserved. SQL> conn /as sysdba Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 3206946816 bytes Fixed Size 2280384 bytes Variable Size 1677722688 bytes Database Buffers 1518338048 bytes Redo Buffers 8605696 bytes Database mounted. Database opened. SQL> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down.
2.将数据文件迁移到指定位置
[oracle@mumuso oradata]$ cp NEANDS.dbf /u01/app/oracle/oradata/orcl/NEANDS.dbf [oracle@mumuso oradata]$ cp TS_FAIR.dbf /u01/app/oracle/oradata/orcl/TS_FAIR.dbf
3.将数据库启动到mount状态，rename datafile
SQL> startup mount ORACLE instance started. Total System Global Area 3206946816 bytes Fixed Size 2280384 bytes Variable Size 1677722688 bytes Database Buffers 1518338048 bytes Redo Buffers 8605696 bytes Database mounted. SQL> alter database rename file '/u01/app/oracle/oradata/NEANDS.dbf' to '/u01/app/oracle/oradata/orcl/NEANDS.dbf'; Database altered. SQL> alter database rename file '/u01/app/oracle/oradata/TS_FAIR.dbf' to '/u01/app/oracle/oradata/orcl/TS_FAIR.dbf'; Database altered.
4.打开数据库
SQL> alter database open; Database altered. SQL> select file#,name,status from v$datafile; FILE# NAME STATUS ---------- ---------------------------------------------------------------------------------------------------- ------- 1 /u01/app/oracle/oradata/orcl/system01.dbf SYSTEM 2 /u01/app/oracle/oradata/orcl/sysaux01.dbf ONLINE 3 /u01/app/oracle/oradata/orcl/undotbs01.dbf ONLINE 4 /u01/app/oracle/oradata/orcl/users01.dbf ONLINE 5 /u01/app/oracle/oradata/orcl/NEANDS.dbf ONLINE 6 /u01/app/oracle/oradata/orcl/TS_FAIR.dbf ONLINE 6 rows selected.
在实验过程中做了错误的操作
我已经迁移完数据文件，又做了rename操作，此时控制文件已经找不到原来的数据文件报如下错误：
SQL> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down. " - rest of line ignored. SQL> alter database rename file '/u01/app/oracle/oradata/NEANDS.dbf' to '/u01/app/oracle/oradata/orcl/NEANDS.dbf'; alter database rename file '/u01/app/oracle/oradata/NEANDS.dbf' to '/u01/app/oracle/oradata/orcl/NEANDS.dbf' * ERROR at line 1: ORA-01034: ORACLE not available Process ID: 3342 Session ID: 3394 Serial number: 5
解决办法：
SQL> alter database recover datafile '/u01/app/oracle/oradata/orcl/NEANDS.dbf'; Database altered. SQL> alter database recover datafile '/u01/app/oracle/oradata/orcl/TS_FAIR.dbf'; Database altered. SQL> alter database open; Database altered.