SQL Value Window Functions | LEAD, LAG, FIRST_VALUE, LAST_VALUE | #SQL Course #6

In Part 4, we'll dive into 4 SQL value window functions, focusing on LEAD, LAG, FIRST_VALUE, and LAST_VALUE. We'll explore the concept behind these functions, their syntax, and important use cases from real-life projects.
We will cover very important analytical use cases: Top-N Analysis, Bottom-N Analysis, Identify Duplicates, Assign Unique IDs, Data Segmentation, and Data Distribution Analysis.
SQL value window functions provide powerful tools to analyze and understand data distributions, rankings, and proportions within SQL queries.

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⏱️ TIMESTAMPS ⏱️
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00:00 Intro
00:00:33 What are Window Value Functions?
00:04:12 MIN & MAX
00:14:01 MIN & MAX: Month-Over-Month Analysis
00:20:50 MIN & MAX: Customer Retention Analysis
00:29:36 FIRST_VALUE & LAST_VALUE
00:19:45 ROW_NUMBER: TOP-N Analysis
00:41:46 Summary

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