Upload 153

Author: ggeerraarrdd

README.md

@@ -185,6 +185,7 @@ The problems and both submitted and site solutions are documented in individual
 | 150   | [Reformat Department Table](https://leetcode.com/problems/reformat-department-table/description/)                                                             | [Solution](solutions/150_reformat_department_table.md)                                | LeetCode    | Easy         |                                                                     |
 | 151   | [Capital Gain/Loss](https://leetcode.com/problems/capital-gainloss/description/)                                                                              | [Solution](solutions/151_capital_gainloss.md)                                         | LeetCode    | Medium       |                                                                     |
 | 152   | [Daily Leads and Partners](https://leetcode.com/problems/daily-leads-and-partners/description/)                                                               | [Solution](solutions/152_daily_leads_and_partners.md)                                 | LeetCode    | Easy         |                                                                     |
+| 153   | [Find Total Time Spent by Each Employee](https://leetcode.com/problems/find-total-time-spent-by-each-employee/description/)                                   | [Solution](solutions/153_find_total_time_spent_by_each_employee.md)                   | LeetCode    | Easy         |                                                                     |
 <!-- Index End - WARNING: Do not delete or modify this markdown comment. -->
 
 ## Author(s)

solutions/153_find_total_time_spent_by_each_employee.md

@@ -0,0 +1,44 @@
+# SQL Everyday \#153
+
+## Find Total Time Spent by Each Employee
+
+Site: LeetCode\
+Difficulty per Site: Easy
+
+## Problem
+
+Write a solution to calculate the total time *in minutes* spent by each employee on each day at the office. Note that within one day, an employee can enter and leave more than once. The time spent in the office for a single entry is `out_time - in_time`.
+
+Return the result table in *any order*. [[Full Description](https://leetcode.com/problems/find-total-time-spent-by-each-employee/description/)]
+
+## Submitted Solution
+
+```sql
+-- Submitted Solution
+SELECT
+    event_day AS day
+    ,emp_id
+    ,SUM(out_time - in_time) AS total_time
+FROM Employees
+GROUP BY day, emp_id
+ORDER BY day ASC, emp_id ASC
+;
+```
+
+## Site Solution
+
+```sql
+-- LeetCode Solution 
+-- TBD
+```
+
+## Notes
+
+TBD
+
+## NB
+
+TBD
+
+Go to [Index](../?tab=readme-ov-file#index)\
+Go to [Overview](../?tab=readme-ov-file)