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⚡️Free SQL Course & Datasets Below ⬇️
Free Intro SQL Course: https://www.bigdataenergycourses.com/step-1
Beginner Course https: https://www.bigdataenergycourses.com/step-2
Intermediate Course: https://www.bigdataenergycourses.com/step-3-big-sql-energy
In this video, I teach you SQL case statements - one of the most practical skills you'll use in almost every real-world query. I show you how case statements work like if-then logic, how to categorize both numeric and string data, and demonstrate an advanced technique where I nest case statements inside aggregate functions to create powerful binary columns for data analysis.
Chapters:
00:00 - What are SQL case statements and why you need them
00:51 - Case statement syntax and waterfall logic
02:57 - Categorizing numeric data with price buckets
04:56 - Fixing logic gaps and handling edge cases
07:01 - Categorizing string data into essentials and accessories
09:51 - Creating binary columns for data flagging
10:49 - Using case statements with aggregate functions
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