MySQL Solutio || Easy and Clean || beats 99% users
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```\n# Write your MySQL query statement below\nselect stock_name ,\n\nsum(CASE WHEN operation = \'Sell\' then price ELSE -price END )\n\nas capital_gain_loss\n\nfrom stocks\n\ngroup by stock_name;\n\n```
['MySQL']