Database: concert_singer_total_0
Question: Find the name and location of the stadiums which some concerts happened in the years of both 2014 and 2015.
SQL: select t1.name , t1.location from concert_stadium as t1 where t1.year = 2014 intersect select t1.name , t1.location from concert_stadium as t1 where t1.year = 2015