Context: CREATE TABLE players (first_name VARCHAR, country_code VARCHAR, birth_date VARCHAR, player_id VARCHAR); CREATE TABLE matches (winner_id VARCHAR, winner_rank_points VARCHAR)
Question: Find the first name, country code and birth date of the winner who has the highest rank points in all matches.
Answer: SELECT T1.first_name, T1.country_code, T1.birth_date FROM players AS T1 JOIN matches AS T2 ON T1.player_id = T2.winner_id ORDER BY T2.winner_rank_points DESC LIMIT 1