> For the complete documentation index, see [llms.txt](https://docs.n8n.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.cratedb.md).

# CrateDB

Use the CrateDB node to automate work in CrateDB, and integrate CrateDB with other applications. n8n has built-in support for a wide range of CrateDB features, including executing, inserting, and updating rows in the database.

On this page, you'll find a list of operations the CrateDB node supports and links to more resources.

{% hint style="info" %}
**Credentials**

Refer to [CrateDB credentials](/integrations/builtin/credentials/cratedb.md) for guidance on setting up authentication.
{% endhint %}

## Operations <a href="#operations" id="operations"></a>

* Execute an SQL query
* Insert rows in database
* Update rows in database

## Templates and examples <a href="#templates-and-examples" id="templates-and-examples"></a>

[Browse CrateDB node documentation integration templates](https://n8n.io/integrations/cratedb) or [search all templates](https://n8n.io/workflows/)

## Node reference <a href="#node-reference" id="node-reference"></a>

### Specify a column's data type <a href="#specify-a-columns-data-type" id="specify-a-columns-data-type"></a>

To specify a column's data type, append the column name with `:type`, where `type` is the data type you want for the column. For example, if you want to specify the type `int` for the column **id** and type `text` for the column **name**, you can use the following snippet in the **Columns** field: `id:int,name:text`.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.cratedb.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.