Vazba
SQL vazba z tabulky Z0VYJOM na tabulku Z0VYJADROVANI
select *
from Z0VYJOM z0vyjom
left outer join Z0VYJADROVANI z0vyjadrovani on z0vyjadrovani.idpk = z0vyjom.idpk_vyjadreni
select *
from Z0VYJOM z0vyjom
left outer join Z0VYJADROVANI z0vyjadrovani on z0vyjadrovani.idpk = z0vyjom.idpk_vyjadreni