Simple and Easy MySQL Solution
\n# Write your MySQL query statement below\nselect event_day as day, emp_id,\nSUM(out_time-in_time) as total_time\nfrom Employees\ngroup by event_day, emp_id\n 
```\n# Write your MySQL query statement below\nselect event_day as day, emp_id,\nSUM(out_time-in_time) as total_time\nfrom Employees\ngroup by event_day, emp_id\n \n```\n\n**Please UpVote if it was Helpful :)**
['MySQL']