oracle 10g EX if i am not mistaken ,
just will use 1gig of RAM.
just will utilize one CPU.
just will allows you to have a DB of 4GIG size.
these are basic restriction over Oracle 10g EX ,
It does not have full blown Enterprise Manager , it does not support clustring .....
for more information take a look at :
www.oracle.com/technology/products/database/xe/pdf/dbxe_faq.pdf http://www.oracle.com/technology/products/database/oracle10g/pdf/twp_general_10gdb_product_family.pdf take a look at your budget and the link above then decide about edition you need.