this is table : bbc(name, region, area, population, gdp)
Some countries have populations more than three times that of any of their neighbours (in the same region). Give the countries and regions.
this is what i am trying : select distinct a.name, a.region from bbc a where a.name = any(select b.name from bbc b where a.name!=b.name and a.region=b.region and a.population> 3 * b.population)
but there is still some mistakes, i couldn't find
please try to solve it.