Relationship to the PM's Location records, used to find the location records for a given PM. (locations.location = pm.location). The resulting set will contain zero or one record.
Razmerje do zapisov o lokaciji za PV, ki se uporablja za iskanje zapisov o lokaciji za dani PV. (locations.location = pm.location). Nabor rezultatov bo vseboval nič zapisov ali enega samega.