12 CLASS Database Normalization Explained: 1NF, 2NF, 3NF & Data Redundancy

📌 Topics Covered in This Video: The Replace Function: How to swap out old records for new ones using the UPDATE statement and wildcards. The Modify Command: Altering existing table structures, converting data types, and safely adjusting character lengths. Understanding Data Redundancy: What it is, the insertion/deletion anomalies it causes, and how it impacts your SQL Joins. Database Normalization (1NF, 2NF, 3NF): The step-by-step process of dividing large tables into smaller, related parts to maintain absolute data integrity. Denormalization: Why and when you might intentionally insert duplicate records to test query performance.