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Your First AI-Generated Database Table (SQL + Prompting)
Chapter 3: Understanding SQL Data Types in the AI Era

Welcome to Chapter 3 of the 2026 AI-Assisted Programming Course.
In this lesson, we focus on one of the most important foundations for all backend development: SQL data types.

AI can generate SQL code for you — but if you don’t understand data types, you won’t know whether the AI output is correct. A single wrong type can break your database, cause errors, or make your application slow.

In this chapter you will learn:

What SQL data types actually mean

The difference between INT, VARCHAR, TEXT, DECIMAL, and TIMESTAMP

Why SERIAL works in PostgreSQL but not in MySQL

How to choose the correct type for each field

How AI makes mistakes when the prompt is too short

How to check and correct AI-generated SQL

This is a fundamental skill for any developer working with AI tools.
When you understand data types, you can guide AI properly and build databases that work reliably.

📌 This chapter belongs to the full playlist “How to Learn Programming in the AI Era (2026 Guide).” https://studio.youtube.com/playlist/P...
Follow the course from Chapter 1 for the best learning experience.
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