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ER — Database schema template

Entities and relationships for a data model. Open it in the editor, replace what needs replacing, and export a typeset PDF — free, no signup, nothing uploaded.

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Database Schema

How customers, orders, and products relate.

mermaid
erDiagram
  CUSTOMER ||--o{ ORDER : places
  ORDER ||--|{ LINE_ITEM : contains
  PRODUCT ||--o{ LINE_ITEM : "ordered in"

The Markdown source

# Database Schema

How customers, orders, and products relate.

```mermaid
erDiagram
  CUSTOMER ||--o{ ORDER : places
  ORDER ||--|{ LINE_ITEM : contains
  PRODUCT ||--o{ LINE_ITEM : "ordered in"
```

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