Vazba
SQL vazba z tabulky C1ZAHR3 na tabulku C1ZAHR2
select *
from C1ZAHR3 c1zahr3
left outer join C1ZAHR2 c1zahr2 on c1zahr2.idpk = c1zahr3.idpk_czahr2
select *
from C1ZAHR3 c1zahr3
left outer join C1ZAHR2 c1zahr2 on c1zahr2.idpk = c1zahr3.idpk_czahr2