LeetCode 197 - Rising Temperature | SQL Self-Join Interview FAANG

Here is how to solve LeetCode 197 - Rising Temperature using SQL. In this video we will explore and take a look at a SQL interview question problem often used by FAANG (Facebook, Amazon, Apple, Netflix and Google) and similar tech companies, and solve it during this walkthrough/tutorial.

We conduct a self join on a table to connect with and compare a table's current-day values with the preceding day's value. Using a date function is required to do this properly.

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Contents -
0:00 - Understanding the Problem
2:17 - Solution Walkthrough

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[Lifebeam]

I don't understand the self join. How does it know which table is yesterday and which table is today?

[kashishlohiya]

how the computer knows that this table is yesterday, didn't get your logic, why are we using datediff make me understand