Relationship to the vendor table, used to find the vendor for a given work plan material. (companies.company=wpmaterial.vendor ). This resulting set will contain zero or one object.
Razmerje do tabele vendor, ki se uporablja za iskanje dobavitelja za dani material delovnega plana. (companies.company=wpmaterial.vendor ). Nabor rezultatov bo vseboval nič objektov ali enega.