Relationship to WoPrecaution table. (woprecaution.wonum = wohazardprec.wonum and woprecaution.precautionid = wohazardprec.precautionid and woprecaution.wosafetydatasource = wohazardprec.wosafetydatasource). The resulting set will contain one object.
Razmerje do tabele WoPrecaution. (woprecaution.wonum = wohazardprec.wonum and woprecaution.precautionid = wohazardprec.precautionid and woprecaution.wosafetydatasource = wohazardprec.wosafetydatasource). Nabor rezultatov bo vseboval en objekt.