What is a Data Model? Database Normalization Explained (Power BI & SQL Basics)
In this video, you will learn what a Data Model is and what Database Normalization means with simple real-world examples for Power BI and SQL beginners.
Data modeling is the backbone of Power BI, SQL, and Data Warehousing.
This tutorial explains how tables connect, why normalization is important, and how structured data models improve performance and accuracy in analytics.
This video is perfect for:
Power BI beginners
Data Analysts & BI Developers
SQL and Data Engineering learners
Interview preparation
🔑 Topics Covered
✔ What is a Data Model
✔ How tables connect using relationships
✔ What is Database Normalization
✔ Why normalization is important
✔ Real-world example of normalized vs non-normalized data
✔ How BI tools use normalized data models
🎯 What You Will Learn
✅ Core data modeling concepts
✅ How structured data improves performance
✅ Why companies normalize databases
✅ Interview-ready BI and SQL fundamentals
🕒 TIMESTAMPS (Retention Optimized)
00:00 – Introduction & Why Data Modeling Matters
00:20 – What is a Data Model (Simple Example)
01:30 – Relationships Between Tables
02:00 – What is Database Normalization
02:30 – Why Normalization is Important
03:30 – Normalized vs Non-Normalized Example
04:00 – How BI Tools Use Data Models
04:30 – Summary & Next Topic
🚀 Next in the Course
Next video: Fact vs Dimension Tables Explained | Star Schema Basics
👉 Watch full Power BI Complete Course Playlist.
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