Question

I´m developing a Book Trading System…
The user will input your Book to trading…

I already have a table tblBook with “all” existing books …
So the user will select one book from that list and fill the book´s CONDITIONS and Edition…

So, what is a good Database design to tha case?

tblBook => All books
tblUserBook => All User Books

And making tblUserBook to inheritance tblBook?

Thanks

Answer 1

I think you’re on the right track. I’d probably do something like this:

Book (book_id, book_name, etc...)

UserBook (book_id, user_id, condition, edition)

Inheritance isn’t really the right word, but the UserBook table would be related to both the book and user tables and store information about that relationship.