You have seen from the reading that there are different kinds of relationships. Suppose my friend Ace has just joined the class and I have tabbed YOU to bring him up tp speed ... this will be a challenge for you knowing Ace ... he's not the sharpest tool in the shed if you know what I mean.

Create your own scenario and set of data (might want to keep it simple) so that you can explain to him:

A one-to-many relationship

A one-to-one relationship

A many-to-many relationship

And how to resolve a many-to-many relationship

Why we have keys

You are essentially preparing a tutorial.

pls and thank you