simple MYSQL ✅ || Runtime 0 ms✅ || Beats 100% ✅
\n\n# Code\n\n# Write your MySQL query statement below\nselect event_day as day,emp_id,sum(out_time-in_time) as total_time from Employees group by event_day,emp
\n\n# Code\n```\n# Write your MySQL query statement below\nselect event_day as day,emp_id,sum(out_time-in_time) as total_time from Employees group by event_day,emp_id;\n```\n![7abc56.jpg](https://assets.leetcode.com/users/images/855a0eda-a456-452c-984c-1d231eea12fd_1676643923.6044905.jpeg)\n
['MySQL']