Serge Aurubin

SERGE AURUBIN

DATA SCIENTIST

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Data Modeling Explained in 3 Minutes

techTFQ

July 21, 2026   1

My Live SQL Bootcamp is back - the first one in over a year! 8 live sessions, Beginner to Advanced, starting Sept 5. Seats are limited ????
https://sqlnest.com/bootcamp/Live_SQL_Bootcamp_Beginner_to_Advanced

Before you write a single line of SQL, there's a step almost every beginner skips: Data Modeling. In this video, we break down exactly what data modeling is, why it matters, and how skipping it leads to messy, hard-to-maintain databases, all in under 3 minutes.

You'll learn:
✅ What data modeling actually means (in plain English, no jargon)
✅ Why it's the "blueprint" step every database needs before you build it
✅ A real before/after example - turning one messy table into a clean, related set of tables
✅ How this sets up everything else in the Data Modeling module: ER diagrams, relationships, keys, and normalization

This is Video 1 of our Data Modeling series on SQLNest's SQL Intermediate course. If you're learning SQL and want to actually understand database design - not just memorize syntax — this series is for you.

???? More from SQLNest:
???? Full SQL courses (Beginner → Intermediate → Advanced)
???? Real-world practice problems with solutions
???? Industry-style case studies...

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