Time: 485 ms (93.00%) | Memory: 0B (100.00%) - LeetSync

Author: sayandip20

1182-game-play-analysis-iv/game-play-analysis-iv.sql

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+# Write your MySQL query statement below
+SELECT ROUND(COUNT(DISTINCT player_id)/(SELECT COUNT(DISTINCT player_id) FROM Activity), 2) AS fraction
+FROM Activity WHERE (player_id, DATE_SUB(event_date, INTERVAL 1 DAY))
+IN (SELECT player_id, MIN(event_date) AS first_login FROM Activity GROUP BY player_id);