Quick and simple free tool to help you draw your database relationship diagrams and flow quickly using simple DSL language.

dbdiagram is a free, simple tool to draw database diagrams (ERDs) by typing DSL code.

You can quickly create database diagrams (ERDs) using DBML to visualize database structures, and define relationships, all without relying heavily on a mouse—perfect for those who prefer coding over …

Relationships We support 2 ways of creating relationships: Typing DBML code (docs) Interacting directly on the diagrams itself, by dragging from field to field. Change the header color for the table. Useful to …

DBML (database markup language) is a simple, readable DSL language designed to define database structures. This page outlines the full syntax documentations of DBML.

Whether you need a high-level overview of the entire database or want to drill down into specific tables, make it easier to understand complex database schemas.

Oct 15, 2024 · At its core, Crow's Foot Notation focuses on depicting relationships between entities (tables) using specific symbols. These symbols denote cardinality, or the number of relationships …

Dec 6, 2019 · For our case, we’re trying to visualize a large complex schema that has a large number of many-to-many relationships and will not (necessarily) be implemented in a SQL database.

Mar 6, 2025 · You must use the “-” symbol to define a one-to-one relationship. So your code will look like this: account_id int [ref: - account.id, unique, not null]. This is my example: Hope this helps.

Mar 6, 2025 · Label your relationships in DBML and see the names pop up on hover in your diagram! These hover-triggered names make it a breeze to identify connections without cluttering the view.