Vazba
SQL vazba z tabulky PVF_HL na tabulku O6ARCH
select *
from PVF_HL pvf_hl
left outer join O6ARCH o6arch on o6arch.idpk = pvf_hl.idpk_o6arch
select *
from PVF_HL pvf_hl
left outer join O6ARCH o6arch on o6arch.idpk = pvf_hl.idpk_o6arch