Oracle Database Discussions

Dear All,

Here is a little story how I started getting this error:

1) I was installing Oracle Enterprise Manager 10g
2) While installation it said that you have to set two parameters with following values before go further:
session_cached_cursors=200
aq_tm_processes=1
3) I used following commands in order to set values:
alter system set session_cached_cursors=200 scope=both
alter system set aq_tm_processes=1 scope=both (it did give me error)
alter system set aq_tm_processes=1 scope=spfile (it worked)
4) I shutdown the database but it gave me following error
Database closed.
Database dismounted.
ORA-03113: end-of-file on communication channel
5) Now when I am starting up the database it is giving following error

SQL> startup
ORA-24324: service handle not initialized
ORA-01041: internal error. hostdef extension doesn't exist

Can anybody help me it looks like that I have made some silly mistakes :( but I really need help.

Thanks in anticipation!!!

Regards,

Zia Shareef