# Snowflake

## WarpStream Iceberg Catalog

This guide explains how to query WarpStream Tableflow tables by connecting Snowflake to the WarpStream Iceberg REST catalog.

#### 1. Prepare the Base URL and Authentication

Get the base URL and authentication for the next step by following the instructions in [Iceberg REST Catalog](/warpstream/tableflow/iceberg-catalog.md#construct-the-base-url) and [Iceberg REST Catalog](/warpstream/tableflow/iceberg-catalog.md#authenticate).

#### 2. Create Catalog Integration

```sql
CREATE OR REPLACE CATALOG INTEGRATION warpstream_catalog 
    CATALOG_SOURCE = ICEBERG_REST 
    TABLE_FORMAT = ICEBERG 
    CATALOG_NAMESPACE = 'default' 
    REFRESH_INTERVAL_SECONDS = 60 
    REST_CONFIG = ( 
        CATALOG_URI = '$BASE_URL' 
    ) 
    REST_AUTHENTICATION = ( 
        TYPE = BEARER 
        BEARER_TOKEN = '$AGENT_KEY' 
    )
    ENABLED = TRUE;
```

Replace:

* `$BASE_URL` - Base URL from the previous step.
* `$AGENT_KEY` - Your WarpStream Agent Key (starts with `aks_`) from the previous step.

<figure><img src="/files/bww9gkGpZZWEnjZc8m7b" alt=""><figcaption></figcaption></figure>

#### 3. Create External Volume

Configure an external volume `<warpstream_volume>` pointing to your Tableflow storage bucket by following these instructions: <https://docs.snowflake.com/en/user-guide/tables-iceberg-configure-external-volume>

Basically, you will need to configure the correct authentication or privileges (IAM role, GCS principal etc.) depending on the storage provider, and then run this command to create an external volume:

```sql
CREATE OR REPLACE EXTERNAL VOLUME <warpstream_volume> 
    STORAGE_LOCATIONS = ( 
        ( 
            NAME = '<warpstream_volume>', 
            STORAGE_PROVIDER = '<storage_provider>', 
            STORAGE_BASE_URL = '<bucket_url>' 
        ) 
    );
```

<figure><img src="/files/he0Jx4XqOvCJSxFj9BYD" alt=""><figcaption></figcaption></figure>

#### 4. Create Iceberg Table

```sql
CREATE OR REPLACE ICEBERG TABLE my_table
    EXTERNAL_VOLUME = '<warpstream_volume>' 
    CATALOG = 'warpstream_catalog' 
    CATALOG_TABLE_NAME = '<table_name>';
```

<figure><img src="/files/SeQ6jETwy2I2IYFwYMy7" alt=""><figcaption></figcaption></figure>

#### 5. Query the Table

```sql
-- Count records 
SELECT COUNT(*) FROM my_table;
-- View sample data 
SELECT * FROM my_table LIMIT 10;
```

<figure><img src="/files/7kyFpDGd2kO64fJXfCmq" alt=""><figcaption></figcaption></figure>


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# Agent Instructions: 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:

```
GET https://docs.warpstream.com/warpstream/tableflow/catalogs-and-query-engines/snowflake.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.