I am planning to make a very simple web Application. I need to have database for that. Is there any free version(Probably 11g) of oracle i can install at my machine with guide giving steps how to setup. If not oracle, Please suggest me which free database i should go for.
Yes, there is the Oracle XE Edition, which comes with some limitations, but can be used freely even for business. I don't have any experience with it, but I assume everything should be covered in the documentation, as usual for Oracle. A summary and a good starting point is here.