Vazba
SQL vazba z tabulky ZOM_ODB_ZME na tabulku Z6A
select *
from ZOM_ODB_ZME zom_odb_zme
left outer join Z6A z6a on z6a.idpk = zom_odb_zme.cis_z6a_stary
select *
from ZOM_ODB_ZME zom_odb_zme
left outer join Z6A z6a on z6a.idpk = zom_odb_zme.cis_z6a_stary