情境
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.
這張圖裡有什麼
看懂背後的決策。
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.