(+) sintaxe para junções externas no mysql

select a.country acountry,
        a.stateProvince aStateProvince,
        b.countryName bcountry,
        b.name bstateProvince
  from User a
        left join
          stateprovince b
    on  a.country = b.countryName 
          and a.stateProvince = b.name