Restaurant Database Schema

What this template is for

This restaurant database schema gives you a ready-to-edit ER diagram for a restaurant ordering and reservation system. It models the entities every restaurant app needs: a menu organized by category, orders placed by customers at tables, order items linking each order to menu items, and reservations that book a table for a customer at a time. Use it to design a new restaurant or food-ordering system, document an existing database, or explain how orders, tables, and reservations relate before writing any SQL.

When to use this template

• Design the database for a restaurant ordering or POS system.
• Model the many-to-many relationship between orders and menu items via an order-item table.
• Plan a reservation system that books tables without double-booking.
• Decide how an order links to both a customer and a table.
• Document an existing restaurant database for a new developer.
• Explain to a stakeholder how menu availability and pricing are stored.

How to use it

1. 1Start with MenuItem and link it to a Category for menu organization.
2. 2Add a Customer table and a RestaurantTable table.
3. 3Add an Order table referencing both customer and table, with status and total.
4. 4Add an OrderItem table linking each order to menu items with quantity and subtotal.
5. 5Add a Reservation table booking a table for a customer at a given time.
6. 6Add cardinality: one order has many order items; one table has many reservations.

Quick example