ORA-01103: database name 'TEST' in control file is not 'CDB'

Problem Description: 

Alter database mount failed with following error after the dbname change using DBNEWID – NID utility.

SQL> startup mount
ORACLE instance started.

Total System Global Area  838858176 bytes
Fixed Size		    8902080 bytes
Variable Size		  515899392 bytes
Database Buffers	  310378496 bytes
Redo Buffers		    3678208 bytes
ORA-01103: database name 'TEST' in control file is not 'CDB'

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Solution Description: 

Change the db_name in spfile using below command and mount the database. Then shutdown the database and mount it again.

SQL> alter system set db_name='TEST' scope=spfile;

System altered.

SQL> shut immediate; 
ORA-01507: database not mounted

ORACLE instance shut down.
SQL> startup mount; 
ORACLE instance started.

Total System Global Area  838858176 bytes
Fixed Size		    8902080 bytes
Variable Size		  515899392 bytes
Database Buffers	  310378496 bytes
Redo Buffers		    3678208 bytes
Database mounted.