✅ 100% EASY || FAST 🔥|| CLEAN SOLUTION 🌟
IF THIS WILL BE HELPFUL TO YOU, PLEASE UPVOTE !\n# Code\n\n/* Write your PL/SQL query statement below */ \nSELECT ROUND(COUNT(A2.player_id) / COUNT(A1.player_id
IF THIS WILL BE HELPFUL TO YOU, PLEASE UPVOTE !\n# Code\n```\n/* Write your PL/SQL query statement below */ \nSELECT ROUND(COUNT(A2.player_id) / COUNT(A1.player_id), 2) \n\nAs fraction FROM Activity A1 LEFT OUTER JOIN Activity A2 ON \n\nA2.player_id = A1.player_id AND A2.event_date = A1.event_date + 1 \n\nWHERE (A1.player_id, A1.event_date) IN (SELECT player_id, \n\nMIN(event_date) FROM Activity GROUP BY player_id )\n```\n![5kej8w.jpg](https://assets.leetcode.com/users/images/392ab7c2-59a5-4397-87ae-88a64530651b_1691054946.8054926.jpeg)\n
['Database', 'Oracle']