🗄️ Database Schema Designs Portfolio

A curated collection of production-ready database schemas showcasing best practices in database design, normalization, and performance optimization.

📚 Available Schemas

1. ⭐ E-Commerce Database

Complete e-commerce platform schema

• Tables: 12 core tables (Users, Products, Orders, Cart, Reviews)
• Features: Shopping cart, payment processing, product reviews
• Normalization: 3NF with referential integrity
• Performance: Strategic indexes for optimal query speed
• Tech: SQL Server / PostgreSQL

2. 🏥 Healthcare Management (Coming Soon)

Hospital/clinic management system with patient records and appointments

3. 📦 Inventory Management (Coming Soon)

Warehouse and stock tracking with supplier management

🎯 Design Principles

All schemas follow industry best practices:

✅ Normalized to at least 3NF
✅ Indexed for optimal query performance
✅ Documented with clear comments and usage examples
✅ Scalable design for future growth
✅ Data integrity through foreign key constraints

🛠️ Technologies

• Microsoft SQL Server
• PostgreSQL
• MySQL

📖 What You'll Find Here

Each schema includes:

• Complete SQL DDL scripts
• Database documentation (README)
• Sample queries
• Performance optimization notes
• ER diagrams (where applicable)

👤 About

Created by Rika Afriyani
Junior Database Administrator @ PT PLN Icon+

📧 [email protected]
💼 LinkedIn
🐙 GitHub

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⭐ If you find these schemas helpful, please star this repository!

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Last updated: December 2025