LeetCode - 1393. Capital Gain/Loss (SQL) скачать в хорошем качестве

LeetCode - 1393. Capital Gain/Loss (SQL)

Welcome to the detailed solution and walkthrough for the SQL challenge 'Capital Gain/Loss' from LeetCode. Concepts Covered: -- Aggregation with Conditional Logic (SUM() and CASE): The query demonstrates the use of the SUM() function in combination with a CASE statement. This is a powerful technique to compute conditional sums. In this case, it calculates the capital gain or loss by summing the stock prices, where the price is subtracted if the operation is 'Buy' and added otherwise. -- Grouping Data (GROUP BY): The query employs the GROUP BY clause to aggregate data based on stock_name. This is essential for summarizing data across different stocks, enabling the calculation of capital gain or loss for each stock separately. Whether you're prepping for interviews or refining your SQL skills, this solution will provide you with practical insights and a clearer understanding of some pivotal SQL techniques. Don't forget to like, share, and subscribe for more such walkthroughs. Drop any questions or comments below! #sql #leetcode #coding #sqlforbeginners #developer #faang #interview