Vazba
SQL vazba z tabulky PSTAVUCTO na tabulku PHL
select *
from PSTAVUCTO pstavucto
left outer join PHL phl on phl.idpk = pstavucto.phl_rozliseni
select *
from PSTAVUCTO pstavucto
left outer join PHL phl on phl.idpk = pstavucto.phl_rozliseni