Vazba
SQL vazba z tabulky PUC na tabulku O1CISELN
select *
from PUC puc
left outer join O1CISELN o1ciseln on o1ciseln.ciselnik = puc.mena_cis and o1ciseln.klic1 = puc.mena_klic
select *
from PUC puc
left outer join O1CISELN o1ciseln on o1ciseln.ciselnik = puc.mena_cis and o1ciseln.klic1 = puc.mena_klic