Which table should receive the foreign key? In the example from Alex above, could you just as easily have gone the other way and put the ContactID from the ContactT into the CustomerT - does it matter which way you put the foreign key?
Reply from Alex Hedley:
It depends on your relationship. Is it one to one, one to many, many to many? See the Relationship Seminar for more info. If you are going to have Many Contacts per Customer and you stored the ConactID against the Customer that would only allow one.
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