Relationship to the Companies table, used to find the manufacturer for  a given Inventory record. (Inventory.manufacturer = Companies.company). The resulting set will contain zero or one object.
Razmerje do tabele Companies, ki se uporablja za iskanje proizvajalca za dani zapis zalog. (Inventory.manufacturer = Companies.company). Nabor rezultatov bo vseboval nič objektov ali enega samega.