I am speaking this week at the OpenBase Summit 2007. I am doing a short introduction to Cocoa. Most of the people in the audience are OpenBase users and a large number use the LightSpeed Point-of-Sale system. (LightSpeed stores its data in OpenBase.)
So, I wrote an example that uses the LightSpeed data in an OpenBase database. You can download the source. There is a README.txt in the tarball.
If you don’t have LightSpeed, this probably isn’t that interesting to you.
Let me mention that OpenBase is a lovely database. I started using it in 1994, and I’ve had nothing but good experiences. If you are coming to the OpenBase Summit, please say hey. I’ll be the one in the cowboy hat.