Vazba
SQL vazba z tabulky J2EVID_NAKUP na tabulku OKUTV
select *
from J2EVID_NAKUP j2evid_nakup
left outer join OKUTV okutv on okutv.idpk = j2evid_nakup.idpk_utvar
select *
from J2EVID_NAKUP j2evid_nakup
left outer join OKUTV okutv on okutv.idpk = j2evid_nakup.idpk_utvar