Vazba
SQL vazba z tabulky C1DIETY na tabulku C1ZAHR2
select *
from C1DIETY c1diety
left outer join C1ZAHR2 c1zahr2 on c1zahr2.idpk = c1diety.idpk_czahr2
select *
from C1DIETY c1diety
left outer join C1ZAHR2 c1zahr2 on c1zahr2.idpk = c1diety.idpk_czahr2