Vazba
SQL vazba z tabulky PZAPVAZ na tabulku PVF_HL
select *
from PZAPVAZ pzapvaz
left outer join PVF_HL pvf_hl on pvf_hl.idpk = pzapvaz.idpk_pvfhl
select *
from PZAPVAZ pzapvaz
left outer join PVF_HL pvf_hl on pvf_hl.idpk = pzapvaz.idpk_pvfhl