That's perfect example. Thanks.
I gave it a go and something else happened. On my New Category webpage, I typed in "Test category" and submitted and then went to my database, what it's done, is it's inserted a new record but without the "Test Category" essentially leaving it blank except for the Cat_ID. What did I do wrong this time? I've attached a couple of images of my new record settings and also one of the blank database record that was created.
Thanks so much for your continued help