Database Design Helper (dbdiagram.io)-Visual Database Design

Example

Table users { id int [PK] email varchar name varchar }

Scenario

A developer needs to create a user table with fields for ID, email, and name. Using dbdiagram.io, they can define this structure quickly in DBML, and visualize the table instantly.

Example

Ref: orders.user_id > users.id

Scenario

An architect wants to establish a one-to-many relationship between the orders and users tables, where each order is linked to a user. They define this relationship in DBML to maintain referential integrity.

Example

Table ecommerce.orders { id int [pk] amount decimal }

Scenario

For a multi-schema project, a team can organize tables under different schemas like 'ecommerce', allowing them to maintain a clear structure and organization within a large database.

Example

TableGroup billing { invoices payments }

Scenario

In a complex system with numerous tables, a developer groups related tables like invoices and payments to manage and navigate the database design more effectively.

Example

Enum status { pending approved rejected }

Scenario

A system requires a consistent set of status values for orders. The developer defines an enum in DBML to ensure uniform usage across the database.

Example

Table users [headercolor: #d35400] { id int name varchar }

Scenario

To highlight key tables in a large ERD, a developer changes the header color of specific tables, making the diagram easier to read and navigate.