mysql solution
Write your MySQL query statement below\nselect event_day as day, emp_id,sum(out_time - in_time) as total_time\nfrom employees\ngroup by event_day,emp_id\n
# Write your MySQL query statement below\nselect event_day as day, emp_id,sum(out_time - in_time) as total_time\nfrom employees\ngroup by event_day,emp_id\n
['MySQL']