So I am trying to figure out the %population in China compared to the total of the world.
The formula of calculating the percent is: population in china/total population*100
There is also some countries that have not supplied gdp. And my task is to find what continents were all the countries have supplied gdp.
The database is on: http://sqlzoo.net/wiki/SELECT_from_WORLD_Tutorial
Thanks in advice ~WeeDLY