Vazba
SQL vazba z tabulky PVF_UPOM na tabulku PVF_HL
select *
from PVF_UPOM pvf_upom
left outer join PVF_HL pvf_hl on pvf_hl.idpk = pvf_upom.idpk_pvf
select *
from PVF_UPOM pvf_upom
left outer join PVF_HL pvf_hl on pvf_hl.idpk = pvf_upom.idpk_pvf