ORACLE: DB CLONE

There are many ways to cloning, this is one.
We are going to take a hot backup of the Primary database by
1. putting db into 'alter database begin backup;' mode, 
2. copying the Primary's .DBF Files,
3. Backing up a Controlfile using the following.
Alter database backup controlfile to Trace as 'Path';
We will need to tweak this file in order to create a controlfile from it.
(delete unnecessary lines, Replace Reuse with SET and use RESETLOGS)
5. We then create an INITSID.ORA file in the database folder.....giving
db_name as the only mandatory parameter. ( In some cases we need to also provide
the Compatibility)
6. dimora -new -sid dbname
will create on windows account a new Service that you can then start up using
NET START ORACLESERVICEsid
8. Start up Clone database in nomount mode, all by using the controlfile trace.
9. Take database to mount mode.
10. provide archivelog source and apply all archive logs using
set logsource ='path'
recover database using backup controlfile until cancel;
11. Alter database open resetlogs;
and you have a clone. Congratulations!

c:\>echo %oracle_sid%
harry2

c:\>sqlplus

SQL*Plus: Release 10.2.0.3.0 - Production on Sun Jul 24 03:14:26 2011

Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.

Enter user-name: /as sysdba
Connected to an idle instance.

USER is "SYS"
SQL> @c:\trace.sql
ORACLE instance started.

Total System Global Area  117440512 bytes
Fixed Size                  1289196 bytes
Variable Size              58721300 bytes
Database Buffers           50331648 bytes
Redo Buffers                7098368 bytes