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

# Databricks Unity Catalog

> Connect RisingWave to Databricks Unity Catalog for Apache Iceberg.

You can sink data from RisingWave directly to a Databricks-managed Iceberg table using Unity Catalog. RisingWave acts as a streaming ETL engine, writing data directly into your Unity Catalog.

For a complete guide on configuring the full integration, see [Integrate with Databricks](/iceberg/integ-databricks).

<Note>
  For a complete list of all catalog-related parameters, see the main [Catalog configuration](/iceberg/catalogs#catalog-parameters) page.
</Note>

## Example

<Note>
  `vended_credentials` is added in v2.7.0. For more information, see [Vended credentials](/iceberg/catalogs/rest#vended-credentials).
</Note>

Databricks Unity Catalog integration is intended for **Databricks-managed external Iceberg tables**.
In RisingWave, this catalog is documented for **writing via `CREATE SINK`** (currently `append-only` only).

```sql theme={null}
CREATE SINK databricks_uc_sink FROM my_source
WITH (
  connector = 'iceberg',
  type = 'append-only',
  force_append_only = 'true',

  warehouse.path = '<your-uc-catalog-name>',
  database.name = '<your-schema-name>',
  create_table_if_not_exists = 'true',
  table.name = '<your-table-name>',

  catalog.type = 'rest',
  vended_credentials = true,
  catalog.uri = 'https://<workspace-url>/api/2.1/unity-catalog/iceberg-rest',
  catalog.oauth2_server_uri = 'https://<workspace-url>/oidc/v1/token',
  catalog.credential = '<oauth_client_id>:<oauth_client_secret>',
  catalog.scope = 'all-apis',

  s3.region = 'ap-southeast-1'
);
```

<Note>
  Unity Catalog integration does not support `CREATE CONNECTION` (internal Iceberg tables) or `CREATE SOURCE` in this doc.
</Note>