Vazba
SQL vazba z tabulky PB_POL na tabulku PB_POL
select *
from PB_POL pb_pol
left outer join PB_POL pb_pol on pb_pol.idpk = pb_pol.idpk_pl_bez_fa
select *
from PB_POL pb_pol
left outer join PB_POL pb_pol on pb_pol.idpk = pb_pol.idpk_pl_bez_fa