Beginner-Friendly Solution Using MySQL || Beats 92% Users || Clear
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```mysql []\n# Write your MySQL query statement below\nselect e.employee_id \nfrom Employees e\nleft join Salaries s on e.employee_id = s.employee_id\nwhere salary is null\nunion\nselect s.employee_id \nfrom Employees e\nright join Salaries s on e.employee_id = s.employee_id\nwhere name is null\norder by employee_id\n```
['MySQL']