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1. Shut down the database
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. migrate data files to a specified location
[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. Start the database to mount state, 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. Open the database
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.
I made a wrong operation during the experiment
I have finished migration of data files, and made a rename operation, then the control file could not find the original data file reported the following errors:
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
Solution:
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.