Group by || C++
\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\nfrom Employees\ngroup by event_da
\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\nfrom Employees\ngroup by event_day,emp_id;\n```
['MySQL']