db

E-Commerce System (MS SQL Project)

Full-featured e-commerce database with inventory, orders, and BI

E-Commerce System (MS SQL Project)

Tech Stack

MS SQLLucide Chart

About This Project

Overview

A relational e-commerce backend built in MS SQL covering inventory, orders, and payments, with additional views and queries built out for business-intelligence-style analytics — modeled and diagrammed in Lucidchart.

Motivation

This was a database-design-focused coursework project, and I wanted to go beyond a bare schema into something with real BI-style queries and views on top.

Lessons Learned

Normalization tradeoffs became very concrete here — a fully normalized schema made some of the analytics queries painfully slow, which taught me why selective denormalization exists in real systems.