Want to learn SQL from scratch in just one video? 💥 Udemy instructor and IT systems engineer Jon Avis walks you through the fundamentals of SQL—from setting up PostgreSQL to writing real queries with joins. No fluff, just clear, practical instruction for beginners and upskillers alike. Here’s what you’ll learn: Timestamps 00:00 Intro + What Is SQL 05:00 Databases, Tables & Keys Explained 17:00 Installing PostgreSQL & PGAdmin 23:00 Creating and Modifying Tables 32:00 Inserting, Updating & Deleting Data 45:00 Writing Select Queries + Filtering Data 1:03:00 Sorting, DISTINCT, and Column Aliases 1:13:00 SQL Joins (INNER, LEFT, RIGHT, FULL) 💡 This tutorial covers about 80% of the SQL you’ll use in real-world scenarios—perfect for new learners or as a solid refresher. 👉 Explore more: 📘 Jon’s full SQL course - udemy.com/course/sql-and-postgresql-for-beginners 📚 Browse all SQL courses on Udemy - udemy.com/topic/sql PostgreSQL download: postgresq...