> For the complete documentation index, see [llms.txt](https://doc.duaer.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.duaer.com/integrations/builtin/cluster-nodes/root-nodes/n8n-nodes-langchain.vectorstoredatabricks.md).

# Use Databricks Vector Store in Duaer

In Duaer, Databricks Vector Store is an AI root node. It takes Embedding, Document, and Reranker sub-nodes. Its modes are Get Many, Insert Documents, Retrieve Documents (As Vector Store for Chain/Tool), and Retrieve Documents (As Tool for AI Agent).
## Add Databricks Vector Store to a Duaer digital organization

1. On the Duaer canvas, open the node panel, search for Databricks Vector Store, and connect it after the previous node.
2. Connect the sub-nodes it needs to the inputs under Databricks Vector Store (Embedding, Document, and Reranker), starting with an Embedding.
3. In Credential to connect with, pick or create a Databricks OAuth2 API credential.
4. Pick an Operation Mode: Get Many, Insert Documents, Retrieve Documents (As Vector Store for Chain/Tool), or Retrieve Documents (As Tool for AI Agent).
5. Set Index.
6. If needed, select Add Option for the optional settings listed below.
7. Select Execute step and check the output.

## Databricks Vector Store modes in Duaer

- Get Many: Get many ranked documents from vector store for query.
- Insert Documents: Insert documents into vector store.
- Retrieve Documents (As Vector Store for Chain/Tool): Retrieve documents from vector store to be used as vector store with AI nodes.
- Retrieve Documents (As Tool for AI Agent): Retrieve documents from vector store to be used as tool with AI nodes.

## Databricks Vector Store options in Duaer

Under Add Option, Databricks Vector Store offers Metadata Columns, Search Mode, and Metadata Filter.

## Sub-nodes Databricks Vector Store takes in Duaer

Connect sub-nodes to the inputs under Databricks Vector Store: Embedding, Document, and Reranker. Each sub-node keeps its own credential and settings.
## Questions

### What do you set on Databricks Vector Store in Duaer?

In Duaer, Databricks Vector Store mainly takes Index and Content Column.

### Which credential does Databricks Vector Store use in Duaer?

Duaer's Databricks Vector Store uses a Databricks OAuth2 API credential. The secret stays in the credential, not in node parameters.