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Category: ER diagram

How to create ER diagrams for relational databases like PostgreSQL, MySQL or MariaDB and ER diagrams for nosql databases like MongoDB.
ER Diagram | Datensen

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Sport tournament data model designed for PostgreSQL

Designing a Sports Tournament Data Model for PostgreSQL

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Data model

Data Model Overview: Three Main Types Explained

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How to compare SQL database schema

How to Compare SQL Database Schemas

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Supabase Diagram made in Luna Modeler database modeling tool

Easy Steps to Connect to Supabase and Visualize Your Database with Luna Modeler

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ER Diagram Tool - Luna Modeler

ER Diagram Tool

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ERD from SQL Server Express Database.

How to visualize SQL Server Express Database

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ER diagram from Azure SQL Server database

Step-by-Step Guide: Creating an ER Diagram from Azure SQL Server Database Structure

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Database diagram

How to Create a Database Diagram?

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AdventureWorks ER Diagram

AdventureWorks Sample Database

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Data model for MongoDB

How to list databases and show collections in MongoDB

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List Databases in PostgreSQL and Show Tables in ER Diagram

How to List Databases and Tables in PostgreSQL

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ER Diagram for PostgreSQL database created with Luna Modeler

ER Diagram Samples

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Relationships in ERD

Relationships in ER diagrams

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ER Diagram tool for macOS - Luna Modeler

ER Diagram tool for macOS

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Heroku PostgreSQL ERD made with Luna Modeler

Heroku Postgres and ER diagrams

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Crow's feet notation in ERD

Crow’s foot notation in ER diagram

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SQL Server ERD Creator

SQL Database creator

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NoSQL Data Modeling - Diagram made with Moon Modeler

NoSQL Data Modeling

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entity relationship diagram

What is Entity Relationship Diagram (ERD)?

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One to one relationship

One-to-one relationships

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Many to many relationship

Many-to-many relationships

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One to many relationship

One-to-many relationships

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PostgreSQL vs MongoDB

MongoDB vs PostgreSQL

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Data Modeling Tools

Luna Modeler IconLuna Modeler Data modeling tool for relational databases

Moon Modeler IconMoon Modeler Data modeling tool for MongoDB and noSQL

Galaxy Modeler IconGalaxy Modeler Schema design tool for GraphQL

Meteor Modeler IconMeteor Modeler Visual designer for Sequelize ORM

Documentation

Overview of data modeling tools
Resources and product documentation
Featured blog articles
Product videos

Supported Platforms

PostgreSQL
Oracle Database
SQL Server
MariaDB
MySQL
SQLite
MongoDB
Mongoose
GraphQL
Sequelize

Specific Tutorials

How to connect to Supabase
How to visualize SQL Server Express
Creating an ER Diagram from Azure SQL Server
How to connect to MongoDB Atlas
Data modeling for AWS Amazon DocumentDB
How to visualize Cosmos DB databases

Articles from our blog

How to list databases and show collections in MongoDB
Documenting Databases using ER Diagrams
Top 5 Benefits of Database Modeling Tools
Database design tool for macOS
Top 5 GUI tools for PostgreSQL
ER Diagram samples
What is a data model?
How to List Databases and Tables in PostgreSQL
What is entity relationship diagram?
NoSQL data modeling
Top 5 Data Modeling Tools to know in 2025
How to make a diagram of your GraphQL schema
Many-to-many relationships
Crow's foot notation in ER diagrams
Top 5 GUI tools for SQLite in 2025
How to Set Up MongoDB with Docker Desktop
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