I am a C# developer which I specialize in Win forms and web application. I work in financial field and most of my experience is connecting to Oracle/sql/sybase and get data and display on the screen.
Recently I taught myself how to develop iPhone / iPad applications. It went very well. Now I want to learn how to connect using web services to my own databases and get data or upload data.
So I need to learn Web services, SOAP, WSDL and whatever else that I need. I don't have any experience in it but if someone can direct me to the right books I will buy them and read them. i want to start writing in my office and connect to my databases and be able to do a proof of concept. Any ideas?
Particularly because you're starting out, I would suggest looking at RESTful services. The API is essentially a URL using HTTP GET, PUT, POST, or DELETE. The output can be XML, JSON, whatever you want. Very simple to construct and test. And because the API is so simple, you don't necessarily need to add another library to your project and increase the code size.
The second chapter of the book iPhone Games Projects talks about how to use a RESTful rankings system to record game scores to a server from an iPhone game.