Can I see an example of a application that manages relationships?

Can I see an example of a application that manages relationships?

I run education programmes for schools and need a decent database. I need to be able to look up what instructors have delivered what programmes, what sudents have been on what programmes and create relationships between instructors and programmes, clients and programmes and students and programmes.

I have hada look at Zoho but I cant see anything that will provide an example of what an end product might look like. Do you have any examples of how clever Zoho Creator might be?