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