# entity · Rell standard library · Chromia Docs (concept)

> hidden abstract type entity Parent of all entity types. An entity is a data structure that resides in the SQL database. Entity values are created with a cr

Source: https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/root/entity/

TYPE

# entity

```signature
hidden abstract type entity
```

Parent of all entity types. An entity is a data structure that resides in the SQL database.

Entity values are created with a `create` statement and are persisted in the database, and are accessed
with an `@`-expression.

**See Also**

1. [`@` operator - Chromia Documentation](https://docs.chromia.com/rell/language-features/database/overview/#-operator)

Since 0.6.0

[View this page on docs.chromia.com](https://docs.chromia.com/pages/rell-stdlib/-rell%20-system%20-library/%5Broot%5D/entity/index.html)Generated API reference, mirrored from the live docs