SELECT Country FROM manager WHERE Age  >  50 INTERSECT SELECT Country FROM manager WHERE Age  <  46
Show the countries that have both managers of age above 50 and managers of age below 46.
SELECT Country FROM manager WHERE Age > 50 INTERSECT SELECT Country FROM manager WHERE Age < 46
select country from manager where age > value intersect select country from manager where age < value
Show the countries that have both managers of age above 50 and managers of age below 46 .