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> Mirror of <https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/data-cloud-query-api-reference/query-api-v3-get-chunk.html> (Salesforce, Data 360 Query Guide), read 2026-10-23. Salesforce's own page is the authority; this copy exists because that site refuses non-browser readers.

## Get SQL Query Chunks

Use the `GET /api/v3/query/{queryId}/chunks/{chunkId}` endpoint of the Data 360 Query API to retrieve a specific result chunk from a completed query. Use the `chunkCount` field from the query status response to determine the available chunk IDs. Results are streamed and available in JSON or Apache Arrow format.

*   **HTTP Method**: GET
*   **Format**: REST
*   **URI**: `/api/v3/query/{queryId}/chunks/{chunkId}`

| Parameter | Type | Description |
| --- | --- | --- |
| `queryId` | string | Required. The unique identifier of the query returned from `POST /api/v3/query`. Example: `MTAuMjcuMTgxLjE0OTo3NDg0_1cfc8d35`. |
| `chunkId` | integer | Required. The chunk index to retrieve. The index starts at 0. Use `chunkCount` from the query status response to determine the total number of available chunks. |

| Parameter | Required | Type | Description |
| --- | --- | --- | --- |
| `omitSchema` | No | boolean | `true` to omit schema metadata from the response. Default `false`. |

| Header | Value |
| --- | --- |
| `Authorization` | `Bearer {accessToken}` |
| `Accept` | `application/json` or `application/vnd.apache.arrow.stream` |

Results are streamed using `Transfer-Encoding: chunked`.

| Field | Description |
| --- | --- |
| `metadata` | Object containing column schema. Not included when `omitSchema=true`. |
| `data` | Array of result rows, where each row is an array of values ordered by the `metadata.columns` schema. |
| `returnedRows` | Number of rows returned in this chunk. Arrow responses omit this field. |

Set `Accept: application/vnd.apache.arrow.stream` to receive the chunk as a binary Arrow IPC stream instead of JSON. Arrow is recommended for large chunks.

This example shows a chunk retrieval request and response.

*   [Submit SQL Query](https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/data-cloud-query-api-reference/query-api-v3-post.html)
*   [Get SQL Query Status](https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/data-cloud-query-api-reference/query-api-v3-get-query.html)
*   [Get SQL Query Rows](https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/data-cloud-query-api-reference/query-api-v3-get-rows.html)
*   [Query Services Status Codes](https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/data-cloud-query-api-reference/c360a-api-queryservices-statuscodes.html)


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