What I am trying to achieve is a scenerio where in the relationship between
leads the following constraint is applied: A list can have many leads, but a lead can only belong to one list.
Standard way of doing this is a simple non-identifying one-to-many relationship.
Another way I'm doing this is to create a hybrid one-to-one and a one-to-many relationship.
In both cases a list can contain many leads, but a lead can only exist in one list. Does anyone see any advantages or disadvantages to the second method? Any differences between the two methods? Any alternatives?