Online Shopping Systemвђ“database Design ~ Bhupal Blogs May 2026

The StockQuantity in the Products table is updated (decremented).

Records finalized transactions and historical pricing.

Manages categories, inventory levels, and specifications. The StockQuantity in the Products table is updated

An entry is created in Orders , and details are moved to Order_Items .

💡 A successful database design separates "current state" (Inventory) from "historical record" (Order Items) to ensure financial accuracy. If you'd like to dive deeper, let me know: Do you need the SQL Create Table scripts? Description . Stores credentials

Note: PriceAtPurchase is vital to preserve historical data if the product price changes later. IV. Design Considerations

AddressID , UserID (FK), Street , City , ZipCode , Type (Billing/Shipping). 2. Inventory & Catalog Categories: CategoryID , Name , Description . The StockQuantity in the Products table is updated

Stores credentials, roles (Admin/Customer), and profiles.