Vazba
SQL vazba z tabulky DCUPOH na tabulku O0CISELNIK
select *
from DCUPOH dcupoh
left outer join O0CISELNIK o0ciselnik on o0ciselnik.idpk = dcupoh.idpk_etapa
select *
from DCUPOH dcupoh
left outer join O0CISELNIK o0ciselnik on o0ciselnik.idpk = dcupoh.idpk_etapa