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ERD Crow's Foot Template for Database Schema Design

Start with a production-ready entity relationship diagram using crow's foot notation to map your database tables, keys, and relationships clearly.

ERDDatabase DesignSoftware DevelopmentSchema Modeling
AI-Powered

What This Template Offers

A complete e-commerce database ERD using crow's foot notation, covering customers, orders, products, addresses, and order items with full attribute and key definitions.

  • Six fully defined entities: CUSTOMER, ADDRESS, CATEGORY, PRODUCT, ORDER, and ORDER_ITEM
  • Primary keys (PK), foreign keys (FK), and unique keys (UK) clearly labeled on every attribute
  • Six relationships with crow's foot cardinality symbols (one-to-many, zero-or-more, mandatory)
  • Identifying and non-identifying relationship types modeled separately
  • Left-to-right layout with zoom and pan enabled for large schemas

Perfect Use Cases

E-commerce Platform Design

Use this template as a starting point for any online store schema. It covers the core transactional structure that most retail systems share.

Database Architecture Documentation

Share a readable schema diagram with your team or stakeholders without exporting raw SQL. Crow's foot notation communicates cardinality at a glance.

Engineering Interviews and Technical Assessments

Quickly sketch out a normalized relational schema to demonstrate your database design knowledge during system design rounds.

University and Bootcamp Database Courses

Use this diagram as a reference or assignment submission showing proper normalization, key constraints, and entity relationships.

How to Customize

1

Add or rename entities

Click 'Add Entity' to introduce new tables, or rename existing ones to match your domain (e.g., rename CUSTOMER to USER or MEMBER).

2

Edit attributes and key types

Select any attribute row to change its name, data type (INT, VARCHAR, DECIMAL), or key designation (PK, FK, UK) to reflect your actual schema.

3

Define relationships and cardinality

Add or modify relationships between entities, choosing source and target cardinality (exactly one, zero-or-more, one-or-more) and marking them as identifying or non-identifying.

Why Choose This ERD Template

Key Benefits

Crow's foot notation is the industry standard for relational database diagrams and is immediately understood by developers and DBAs
The e-commerce schema covers the most common relational patterns: one-to-many, optional relationships, and bridge/junction tables
All key types (PK, FK, UK) are pre-labeled so reviewers can assess normalization without reading code
Export as a high-quality image to include in technical specs, pull requests, or architecture documents

Pro Tips

💡Switch the layout direction to 'Top to Bottom' for schemas with deep inheritance chains or hierarchical data models
💡Use the alias field to display a friendly label (e.g., 'Order Item') while keeping the technical table name (ORDER_ITEM) in the entity definition
💡Add comments on attributes (like 'Price captured at purchase time') to document business rules directly on the diagram

Create Your Own ERD Diagram

Describe your database schema and get a crow's foot ERD generated instantly - no drawing tools required.

or upload your data file

Free to start
No sign-up required
AI-powered

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