how should i implement database on moba game hero-counter pick site..?

i am doing my masters in computer science.and i am trying to create website like http://dotapicker.com/ .where site will give the counter picks of the selected heroes.(in dota2 game,there are 114 heroes/champions exist.every hero has 4-5 counter minimum.)so i can fetch hero details from dota2 api which is open sourced by valve. but after that detail what should i do with it ? is it possible to save that details in database ? how should i implement that counter pick thing.?

i know m asking too much.but i need some path to work on.mainly the counter pick thing.

via Nikhil Patel