Vazba
SQL vazba z tabulky kcl na tabulku az
select *
from kcl kcl
inner join az az on az.az_aa = kcl.kcl_aa and az.az_anr = kcl.kcl_anr and az.az_pos = kcl.kcl_pos
select *
from kcl kcl
inner join az az on az.az_aa = kcl.kcl_aa and az.az_anr = kcl.kcl_anr and az.az_pos = kcl.kcl_pos