Hi All
I tried to create small DB in 9.0 to try something on it but unable to do that if you DBAs can help me here...

SQL> startup nomount pfile= c:\test\admin\pfile\init.ora;
ORACLE instance started.

Total System Global Area 118255568 bytes
Fixed Size 282576 bytes
Variable Size 83886080 bytes
Database Buffers 33554432 bytes
Redo Buffers 532480 bytes

SQL> create database prod3
2 controlfile reuse
3 datafile 'c:\test\oradata\system01.dbf' size 325m
4 default temporary tablespace tempts1
5 logfile group 1 ('c:\test\oradata\redo01.log') size 100m,
6 group 2 ('c:\test\oradata\redo02.log') size 100m,
7 group 3 ('c:\test\oradata\redo03.log') size 100m;
create database prod3
ERROR at line 1:
ORA-01100: database already mounted