Schema: CREATE TABLE song (artist_name VARCHAR, resolution INTEGER); CREATE TABLE artist (artist_name VARCHAR, country VARCHAR)
Question: Find the name and country of origin for all artists who have release at least one song of resolution above 900.
SQL: SELECT T1.artist_name, T1.country FROM artist AS T1 JOIN song AS T2 ON T1.artist_name = T2.artist_name WHERE T2.resolution > 900 GROUP BY T2.artist_name HAVING COUNT(*) >= 1