A new method for a database rename instance – NID utility

Rename an Oracle database using the new dbnewid (also called nid, for new ID) utility:

* STEP 1: Backup the database.

* STEP 2: Mount the database after a clean shutdown:

SHUTDOWN IMMEDIATE
STARTUP MOUNT

* STEP 3: Invoke the DBNEWID utility (nid) specifying the new DBNAME from the command line using a user with SYSDBA privilege:

nid TARGET=sys/password@TSH1 DBNAME=TSH2

Assuming the validation is successful the utility prompts for confirmation before performing the actions. Typical output may look something like:

C:\oracle\920\bin>nid TARGET=sys/password@TSH1 DBNAME=TSH2
DBNEWID: Release 9.2.0.3.0 – Production
Copyright (c) 1995, 2002, Oracle Corporation. All rights reserved.

Connected to database TSH1 (DBID=1024166118)

Control Files in database:
C:\ORACLE\ORADATA\TSH1\CONTROL01.CTL
C:\ORACLE\ORADATA\TSH1\CONTROL02.CTL
C:\ORACLE\ORADATA\TSH1\CONTROL03.CTL

Change database ID and database name TSH1 to TSH2? (Y/[N]) => Y

Proceeding with operation
Changing database ID from 1024166118 to 1317278975
Changing database name from TSH1 to TSH2
Control File C:\ORACLE\ORADATA\TSH1\CONTROL01.CTL – modified
Control File C:\ORACLE\ORADATA\TSH1\CONTROL02.CTL – modified
Control File C:\ORACLE\ORADATA\TSH1\CONTROL03.CTL – modified
Datafile C:\ORACLE\ORADATA\TSH1\SYSTEM01.DBF – dbid changed, wrote new name
Datafile C:\ORACLE\ORADATA\TSH1\UNDOTBS01.DBF – dbid changed, wrote new name
Datafile C:\ORACLE\ORADATA\TSH1\CWMLITE01.DBF – dbid changed, wrote new name
Control File C:\ORACLE\ORADATA\TSH1\CONTROL01.CTL – dbid changed, wrote new name
Control File C:\ORACLE\ORADATA\TSH1\CONTROL02.CTL – dbid changed, wrote new name
Control File C:\ORACLE\ORADATA\TSH1\CONTROL03.CTL – dbid changed, wrote new name

Database name changed to TSH2.
Modify parameter file and generate a new password file before restarting.
Database ID for database TSH2 changed to 1317278975.
All previous backups and archived redo logs for this database are unusable.
Shut down database and open with RESETLOGS option.
Succesfully changed database name and ID.
DBNEWID – Completed succesfully.

* STEP 4: Shutdown the database:

SHUTDOWN IMMEDIATE

* STEP 5: Modify the DB_NAME parameter in the initialization parameter file. The startup will result in an error but proceed anyway.

STARTUP MOUNT
ALTER SYSTEM SET DB_NAME=TSH2 SCOPE=SPFILE;
SHUTDOWN IMMEDIATE

* STEP 6: Create a new password file:

orapwd file=c:\oracle\920\database\pwdTSH2.ora password=password entries=10

* STEP 7: Rename the SPFILE to match the new DBNAME.

* STEP 8: If you are using Windows you must recreate the service so the correct name and parameter file are used:

oradim -delete -sid TSH1
oradim -new -sid TSH2 -intpwd password -startmode a -pfile c:\oracle\920\database\spfileTSH2.ora

If you are using UNIX/Linux simply reset the ORACLE_SID environment variable:

ORACLE_SID=TSH2; export ORACLE_SID

* STEP 9: Alter the listener.ora and tnsnames.ora setting to match the new database name and restart the listener:

lsnrctl reload

* STEP 10: Open the database with RESETLOGS:

STARTUP MOUNT
ALTER DATABASE OPEN RESETLOGS;

* STEP 11: Backup the database.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: