> For the complete documentation index, see [llms.txt](https://docs.cascade.io/cascade/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cascade.io/cascade/functions-and-expressions/functions/table/generateuniqueid.md).

# GENERATEUNIQUEID

GENERATEUNIQUEID(`Unique Column`)

Generates unique IDs.

### Arguments

| Argument        | Description                                                                                                                                                           |
| --------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `Unique Column` | Optional. Column(s) containing unique values; unique ids will only be created for each unique value within column or unique grouping of values within set of columns. |

### Output

Unique IDs as strings.

### Example

{% embed url="<https://datawrapper.dwcdn.net/QEP1U/1>" %}


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