How does one rename a database?

Follow these steps to rename a database:

• Start by making a full database backup of your database (in case you need to restore if this procedure is not working).
• Execute this command from sqlplus while connected to 'SYS AS SYSDBA':
  ALTER DATABASE BACKUP CONTROLFILE TO TRACE RESETLOGS;
• Locate the latest dump file in your USER_DUMP_DEST directory (show parameter USER_DUMP_DEST) - rename it to something like dbrename.sql.
• Edit dbrename.sql, remove all headers and comments, and change the database's name. Also change
  "CREATE CONTROLFILE REUSE ..." to "CREATE CONTROLFILE SET ...".
• Shutdown the database (use SHUTDOWN NORMAL or IMMEDIATE, don't ABORT!) and run
  dbrename.sql.
• Rename the database's global name:
  ALTER DATABASE RENAME GLOBAL_NAME TO new_db_name;