> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sdf.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Uuid Functions

## `uuid`

Returns a pseudo randomly generated UUID (type 4).

*Examples:*

```sql examples.sql theme={null}
SELECT uuid() as value; -- value '22552909-5560-4234-a383-5a968a4e2a91'
```

*Supported Signatures*

```sql theme={null}
function uuid() returns uuid
```

*Note: uuid() is volatile, i.e. might return a
different value for the same input.*

[🔗 Official Documentation](https://trino.io/docs/current/functions/uuid.html#uuid)