SELECT C2.name, C.Name AS Expr1, S.Name AS Expr2FROM City c LEFT OUTER JOIN State s ON c.stateid =s.idLEFT OUTER JOIN Country c2 on s.countryId =c2.idコード> プレ>
SELECT C2.name, C.Name AS Expr1, S.Name AS Expr2FROM City c LEFT OUTER JOIN State s ON c.stateid =s.idLEFT OUTER JOIN Country c2 on s.countryId =c2.idコード> プレ>