Our database is a modern version of Northwind traders.
The data model is simple and has just 5 tables.
Download our script and create your own database + data.
Supports SQL Server 2014, 2016, 2017, and 2019.
Alternatively, use the live database in our SQL Editor.
ERD stands for Entity Relationship Diagram.
It's visual overview of the database with tables and their relationships.
ERD diagrams are an important tool for data professionals: they provide a wealth of information, including tables, columns, data types, relationships, primary keys, foreign keys, and indexes -- all in a single diagram.