for my coursework i have been asked to draw up a database model.
specifically, it says we cannot use any of the models we have been using during classwork, these models were a school, customer/order, and a hospital.
The model must contain:
• At least one one-many relationship
• At least one decomposed many-many relationship-show the original many-many relationship (i don't know what this means, anyone shed some light?)
• At least one recursive relationship (Don't know what this means either)
• At least one one-one relationship
• An entity with subtyping that has relationships with other entities that involve the super-type and at least one subtype. (or this)
Could anyone suggest to me what would be a good scenario to use? And perhaps suggest some relationships this could have?
BTW: I'm not too good at my database module at uni, so somethign really complex might be a bit difficult for me to use, i need something which includes all those but isnt TOO complex.
Thanks!