Leetcode - 511. Game Play Analysis I
문제
https://leetcode.com/problems/game-play-analysis-i/
정답
SELECT player_id, MIN(event_date) as first_login
FROM Activity
GROUP BY player_id
https://leetcode.com/problems/game-play-analysis-i/
SELECT player_id, MIN(event_date) as first_login
FROM Activity
GROUP BY player_id