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№
Откуда (PK)
Куда (FK)
Тип связи
1
Category.CategoryID
Product.CategoryID
1:M
2
Manufacturer.ManufacturerID
Product.ManufacturerID
1:M
3
Employee.EmployeeID
Sale.EmployeeID
1:M
4
Customer.CustomerID
Sale.CustomerID
1:M
5
Supplier.SupplierID
Delivery.SupplierID
1:M
6
Product.ProductID
Delivery.ProductID
1:M