Create database (10gR2) manually on Windows based on ASM instance

Step 1: set ORACLE_SID on dos prompt
C:\Documents and Settings\inam>set ORACLE_SID=ASMDB

Step 2: Create parameter for the database instance to be created
D:\ASMTEST\ASMDB\pfile\initASMDB.ora
control_files = +DB_DATA
undo_management = AUTO
db_name = ASMDB
db_block_size = 8192
sga_max_size = 1073741824
sga_target = 1073741824
db_create_file_dest = +DB_DATA
db_create_online_log_dest_1 = +DB_DATA

Step 3: Create a password file
C:\Documents and Settings\inam>orapwd file=D:\ASMTEST\ASMDB\pwdASMDB.ora password=oracle entries=5

Step 4: create/Start the instance
C:\Documents and Settings\inam>oradim -new -sid ASMDB -syspwd asmdb123 -pfile D:\ASMTEST\ASMDB\pfile\initASMDB.ora -startmode a
Instance created.


C:\Documents and Settings\inam>sqlplus / as sysdba

SQL*Plus: Release 10.2.0.1.0 - Production on Tue Oct 26 12:37:05 2010

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options

 SQL> shutdown immediate
 SQL> startup nomount pfile=D:\ASMTEST\ASMDB\pfile\initASMDB.ora
ORACLE instance started.

Total System Global Area 1073741824 bytes
Fixed Size                  1253124 bytes
Variable Size             264241404 bytes
Database Buffers          801112064 bytes
Redo Buffers                7135232 bytes
SQL>


Step 5: Create the database

SQL> create database ASMDB
  2  character set WE8ISO8859P1
  3  national character set utf8
  4  undo tablespace undotbs1
  5  default temporary tablespace temp;

Database created.

Step 6: Run following scripts
SQL> @D:\oracle\product\10.2.0\db_1\RDBMS\ADMIN\catalog.sql
SQL> @D:\oracle\product\10.2.0\db_1\RDBMS\ADMIN\catproc.sql
SQL> @D:\oracle\product\10.2.0\db_1\sqlplus\admin\pupbld.sql


Step 7: Test DB ( some admin task)
Create the service for your newly created db in tnsnames.ora and access via toad or sqlplus for your testing.
SQL> create tablespace myts_on_ASM datafile '+DB_DATA' size 200M

Note: if you are on linux skip step 4 as there is no oradim for linux , other steps are same.