How do I change a Dbname?

Posted on by Muna Meyer

How do I change a Dbname?

How to change the oracle database name using nid utility

  1. Mount the database. SQL> STARTUP MOUNT ORACLE instance started.
  2. Run the NID utility. SYNTAX – nid sys/password@CURRENT_DBNAME DBNAME=NEW_DBNAME.
  3. change the db_name parameter in the parameter file.
  4. Rename the spfile to new db name.

Can we change Db_unique_name?

We can’t specify a different DB_UNIQUE_NAME from DB_NAME during database creation (e.g. 19c), even though we use a response file to create the database in silent mode. This is because Oracle assumes DB_UNIQUE_NAME is the same as DB_NAME, which is really not necessarily correct in some special cases.

How do I change the control name in Oracle database?

DBID And DBNAME

  1. Backup the database.
  2. Mount the database after a clean shutdown.
  3. Invoke the DBNEWID utility (nid) specifying the new DBNAME from the command line using a user with SYSDBA privilege.
  4. Shutdown the database.
  5. Modify the DB_NAME parameter in the initialization parameter file.
  6. Create a new password file.

How do I find Oracle Dbid?

DBID information is found in control files as well as datafile header. 1.. If Oracle Database is up and running then connect rman then along with database name you will find DBID of the database or using v$database DBID can be found.

How can I change database ID?

If the database id is taken you need to detach the database that already has it. Create the database you want to have it and then re-attach the database which originally had it. Then delete your row and reinsert it with different identity.

What is alter database open Resetlogs in oracle?

OPEN. Opens the database. RESETLOGS. Archives the current online redo logs (or up to the last redo record before redo corruption if corruption is found), clears the contents of the online redo logs, and resets the online redo logs to log sequence 1.

What is the difference between DB_NAME and DB_UNIQUE_NAME in Oracle?

DB_UNIQUE_NAME specifies a globally unique name for the database. Databases with the same DB_NAME within the same DB_DOMAIN (for example, copies of a database created for reporting or a physical standby) must have a unique DB_UNIQUE_NAME. Every database’s DB_UNIQUE_NAME must be unique within the enterprise.

Can we change DB unique name in Oracle?

SQL> create pfile=’/home/oracle/pfile’ from spfile; File created. Remove all parameters leading by the old DB_UNIQUE_NAME and add or modify the parameter DB_UNIQUE_NAME in PFILE like this. Permanently, you can change ORACLE_SID in ~/.

How can I check Dbid in RMAN?

We can discover DBID by SQL*Plus or RMAN.

  1. Find DBID in SQLPLUS. We retrieve DB_NAME and DBID by querying V$DATABASE. SQL> conn / as sysdba. Connected. SQL> select name, dbid from v$database;
  2. Find DBID in RMAN. Or we can connect to the database through RMAN. [oracle@test ~]$ rman target / …

Where is Dbid in Nomount state?

IF you don’t know the DBID, don’t panic. You can extract the DBID from the header of a datafile, assuming you have access to it. The database instance needs to up in NOMOUNT mode. Well, it has to be NOMOUNT because you haven’t restored the controlfile yet, a major requirement for the mount operation.

How do I change the ID number in SQL?

How To Reset Identity Column Values In SQL Server

  1. Create a table. CREATE TABLE dbo.
  2. Insert some sample data. INSERT INTO dbo.
  3. Check the identity column value. DBCC CHECKIDENT (‘Emp’)
  4. Reset the identity column value. DELETE FROM EMP WHERE ID=3 DBCC CHECKIDENT (‘Emp’, RESEED, 1) INSERT INTO dbo.