Solving SQL Problems - Date Manipulation

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In this video, we solve a popular SQL problem from LeetCode that asks:
"Find all days with higher temperatures than the previous day."

We walk through the structure of the Weather table, explain the problem with an example, and then dive into the SQL solution using a self join and date manipulation. Perfect for SQL beginners and anyone preparing for data science or software engineering interviews!

📘 Topics covered:

  • SQL self join

  • Working with dates using DATE_ADD

  • Real-world SQL interview question

  • Step-by-step explanation of the logic

Whether you're brushing up on your SQL skills or practicing for your next coding interview, this problem is a great way to test your understanding of comparing rows across time.


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