In this topic we will see how can we change our database name using Oracle NID tool.
Use the syntax bellow to change the Dtabase Name.
Make sure you shutdown and start up in mount mode your oracle database before.
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SQL> shu immediate Database closed. Database dismounted. ORACLE instance shut down. SQL> startup mount ORACLE instance started. Total System Global Area 1610612736 bytes Fixed Size 2077904 bytes Variable Size 385878832 bytes Database Buffers 1207959552 bytes Redo Buffers 14696448 bytes Database mounted. SQL> exit |
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$ nid TARGET=SYS/Password DBNAME=NEWDB SETNAME=YES DBNEWID: Release 11.2.0.4.0 Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved. Connected to database TEST (DBID=2127904120) Connected to server version 11.2.0 Control Files in database: /uu1/oracle/oradata/ABUZERDB/control01.ctl /u01/oracle/flash_recovery_area/control02.ctl Change database name of database TEST to NEWDB? (Y/[N]) => Y Proceeding with operation Changing database name from TEST to NEWDB Control File /uu1/oracle/oradata/ABUZERDB/control01.ctl - modified Control File /u01/oracle/flash_recovery_area/control02.ctl - modified Datafile /uu1/oracle/oradata/ABUZERDB/system01.db - wrote new name Datafile /uu1/oracle/oradata/ABUZERDB/sysaux01.db - wrote new name Datafile /uu1/oracle/oradata/ABUZERDB/undotbs01.db - wrote new name Datafile /uu1/oracle/oradata/ABUZERDB/users01.db - wrote new name Datafile /uu1/oracle/oradata/ABUZERDB/temp01.db - wrote new name Control File /uu1/oracle/oradata/ABUZERDB/control01.ctl - wrote new name Control File /u01/oracle/flash_recovery_area/control02.ctl/control02.ctl - wrote new name Instance shut down Database name changed to NEWDB. Modify parameter file and generate a new password file before restarting. Succesfully changed database name. DBNEWID - Completed succesfully. |
2. Recreate the new password file.
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$ orapwd file=/u01/oracle/product/11.2.0/dbhome_1/dbs/passwd.ora password=Password entries=5 |
3. Make sure that you drop any password files before or you will get some errors. Rename the init.ora file.
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$ rename init.ora initDB.ora |
4. Edit the initDB.ora parameters file.
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$ vi initDB.ora # Change '<oracle_BASE>' to point to the oracle base (the one you specify at # install time) db_name='NEWDB' |
5. Now start the database in nomount mode and alter the db_name parameter in the control file.
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$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.4.0 Production Copyright (c) 1982, 2009, Oracle. All rights reserved. Connected to an idle instance. SQL> startup nomount ORACLE instance started. Total System Global Area 417546240 bytes Fixed Size 2213936 bytes Variable Size 289408976 bytes Database Buffers 121634816 bytes Redo Buffers 4288512 bytes SQL> alter system set db_name=NEWDB scope=spfile; System altered. |
6. Shutdown the database and start it backup.
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SQL> shutdown immediate; ORA-01507: database not mounted ORACLE instance shut down. SQL> startup; ORACLE instance started. Total System Global Area 417546240 bytes Fixed Size 2213936 bytes Variable Size 268437456 bytes Database Buffers 142606336 bytes Redo Buffers 4288512 bytes Database mounted. Database opened |
7. Check the status and name of you database.
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SQL> select status from v$instance; STATUS ------------ OPEN SQL> select * from global_name; GLOBAL_NAME -------------------------------------------------------------------------------- NEWDB |
