The scenario
A pet clinic and pharmacy need a database to manage customers, their pets, clinic visits, medication prescriptions, and online orders. This ER diagram captures the required entities and relationships.
What is in this drawing
Read the decisions behind it.
01
Added optional prescription-orders relationship to allow over-the-counter purchases.
02
Used OrderItem as a separate table to handle multiple medications per order.
03
Connected Prescription to Pet, Clinic, and Medication for complete medical tracking.
When designing a system for a veterinary pharmacy that manages pets, owners, clinics, and prescription-based or direct medication orders.
More like this