Hi everyone,
I am simulate 3-tier architecture now.
Does anyone know that, the Oracle 9iAS - installed with the Standard Edition. There will be a stage to create database. Can someone tell me why the database is needed here as I already configure to connect to the existing database in another server ?

I am really want to know why ?

If the database is necessary then what does it use for ?
Will my existing database get connected ?

Thanks and Regards.