EZ
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```\nSELECT p.product_name AS product_name, sum(o.unit) AS unit \nFROM Products p\nLEFT OUTER JOIN Orders o USING (product_id)\nWHERE YEAR(o.order_date)=\'2020\' AND MONTH(o.order_date)=\'02\'\nGROUP BY p.product_id\nHAVING SUM(o.unit)>=100\n\n```
['MySQL']