Vazba
SQL vazba z tabulky D0TRV na tabulku O0CISELNIK
select *
from D0TRV d0trv
left outer join O0CISELNIK o0ciselnik on o0ciselnik.idpk = d0trv.znak_cinn
select *
from D0TRV d0trv
left outer join O0CISELNIK o0ciselnik on o0ciselnik.idpk = d0trv.znak_cinn