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Java-based LeetCode algorithm problem solutions, regularly updated
1965\. Employees With Missing Information
Easy
SQL Schema
Table: `Employees`
+-------------+---------+
| Column Name | Type |
+-------------+---------+
| employee_id | int |
| name | varchar |
+-------------+---------+
employee_id is the primary key for this table.
Each row of this table indicates the name of the employee whose ID is employee_id.
Table: `Salaries`
+-------------+---------+
| Column Name | Type |
+-------------+---------+
| employee_id | int |
| salary | int |
+-------------+---------+
employee_id is the primary key for this table.
Each row of this table indicates the salary of the employee whose ID is employee_id.
Write an SQL query to report the IDs of all the employees with **missing information**. The information of an employee is missing if:
* The employee's **name** is missing, or
* The employee's **salary** is missing.
Return the result table ordered by `employee_id` **in ascending order**.
The query result format is in the following example.
**Example 1:**
**Input:**
Employees table:
+-------------+----------+
| employee_id | name |
+-------------+----------+
| 2 | Crew |
| 4 | Haven |
| 5 | Kristian |
+-------------+----------+
Salaries table:
+-------------+--------+
| employee_id | salary |
+-------------+--------+
| 5 | 76071 |
| 1 | 22517 |
| 4 | 63539 |
+-------------+--------+
**Output:**
+-------------+
| employee_id |
+-------------+
| 1 |
| 2 |
+-------------+
**Explanation:**
Employees 1, 2, 4, and 5 are working at this company.
The name of employee 1 is missing. The salary of employee 2 is missing.