Templates / Booking / Reservation

Reservation System Database Design (ERD Template)

A reservation system database design for venue- or resource-based booking: venues own bookable resources, customers reserve a resource for a time window, payments settle reservations, and each completed reservation can receive exactly one review. RESTRICT rules keep reservation history intact even when cleanup is attempted upstream.

Open in Sqemo Download .erd.json

Booking / Reservation ER diagram in the Sqemo editor

Tables

Table	Purpose
`customers`	People who book
`venues`	Physical locations with a timezone
`resources`	Bookable units (rooms, courts, seats)
`reservations`	Resource ↔ customer with a time window
`payments`	Settlements per reservation
`reviews`	One review per reservation (UNIQUE FK)

Schema highlights

UNIQUE foreign key on reviews.reservation_id — a true 1:1 enforced by the schema
Reservations RESTRICT against resource/customer deletion to preserve history
Payments and reviews cascade with their reservation
Ships with a starter glossary and Email / Money / Status Code domains — naming compliance starts at 100%

How to use it

Click Open in Sqemo — the template loads as a new local project (nothing is uploaded, no account needed).
Rename entities and attributes; physical names follow your glossary and naming rules automatically.
Export CREATE TABLE SQL for MySQL, PostgreSQL, SQL Server, Oracle, SQLite, H2, or CUBRID — or DBML.

Prefer your own baseline? Import SQL or DBML and Sqemo builds the diagram, foreign keys included.