Vazba
SQL vazba z tabulky PPPOLVAZ na tabulku PP_POL
select *
from PPPOLVAZ pppolvaz
left outer join PP_POL pp_pol on pp_pol.idpk = pppolvaz.idpk_pokl
select *
from PPPOLVAZ pppolvaz
left outer join PP_POL pp_pol on pp_pol.idpk = pppolvaz.idpk_pokl