Upload 130

Author: ggeerraarrdd

README.md

@@ -162,6 +162,7 @@ The problems and both submitted and site solutions are documented in individual
 | 127   | [Consecutive Numbers](https://leetcode.com/problems/consecutive-numbers/description/)                                                                         | [Solution](solutions/127_consecutive_numbers.md)                                      | LeetCode    | Medium       |                                                                     |
 | 128   | [Last Person to Fit in the Bus](https://leetcode.com/problems/last-person-to-fit-in-the-bus/description/)                                                     | [Solution](solutions/128_last_person_to_fit_in_the_bus.md)                            | LeetCode    | Medium       | `ORDER BY turn RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW`   |
 | 129   | [Count Salary Categories](https://leetcode.com/problems/count-salary-categories/description/)                                                                 | [Solution](solutions/129_count_salary_categories.md)                                  | LeetCode    | Medium       | `IFNULL`                                                            |
+| 130   | [Employees Whose Manager Left the Company](https://leetcode.com/problems/employees-whose-manager-left-the-company/description/)                               | [Solution](solutions/130_employees_whose_manager_left_the_company.md)                 | LeetCode    | Easy         |                                                                     |
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 ## Author(s)

solutions/130_employees_whose_manager_left_the_company.md

@@ -0,0 +1,45 @@
+# SQL Everyday \#130
+
+## Employees Whose Manager Left the Company
+
+Site: LeetCode\
+Difficulty per Site: Easy
+
+## Problem
+
+Find the IDs of the employees whose salary is strictly less than `$30000` and whose manager left the company. When a manager leaves the company, their information is deleted from the `Employees` table, but the reports still have their `manager_id` set to the manager that left.
+
+Return the result table ordered by `employee_id`. [[Full Description](https://leetcode.com/problems/employees-whose-manager-left-the-company/description/)]
+
+## Submitted Solution
+
+```sql
+-- Submitted Solution
+SELECT
+    e1.employee_id AS employee_id
+FROM Employees e1
+LEFT JOIN Employees e2 ON e1.manager_id = e2.employee_id
+WHERE e1.salary < 30000
+AND e1.manager_id IS NOT NULL
+AND e2.employee_id IS NULL
+ORDER BY e1.employee_id ASC
+;
+```
+
+## Site Solution
+
+```sql
+-- LeetCode Solution 
+-- None
+```
+
+## Notes
+
+TBD
+
+## NB
+
+TBD
+
+Go to [Index](../?tab=readme-ov-file#index)\
+Go to [Overview](../?tab=readme-ov-file)