Databases

Many programs need to save data permanently.

Lists, dictionaries, and text files are useful, but they become hard to manage as data grows.

Databases are built to store, organize, search, and update data efficiently.

This module teaches you the foundations of databases and how Python works with them.

What You Will Learn

• What databases are
• Why databases matter
• SQLite basics
• CRUD operations
• PostgreSQL introduction
• MySQL introduction
• What ORMs are
• How SQLAlchemy works

Why This Module Matters

Databases are used in almost every real application.

These skills help you build:

• login systems
• inventory apps
• finance trackers
• student systems
• booking platforms
• dashboards

Practical Focus

You will build beginner-friendly examples such as:

• local SQLite apps
• record managers
• searchable systems
• Python database projects
• ORM-based apps

Success Goal

By the end of this module, you will understand database fundamentals and connect Python programs to real databases.