---
title: "Update Rows"
url: https://docs.catalyst.zoho.com/en/sdk/python/v1/cloud-scale/data-store/update-rows/
description: "This page describes the method to update a single row or rows in bulk in a table in the Data Store in your Python application with sample code snippets."
last_updated: 2025-11-19T15:07:41Z
service: Cloud Scale
type: general
related_links:
  - name: "Update Rows - API"
    url: /en/api/code-reference/cloud-scale/data-store/update-row/#UpdateRow
  - name: "Data Store Help"
    url: /en/cloud-scale/help/data-store/introduction
  - name: "SDK Scopes"
    url: /en/sdk/python/v1/sdk-scopes
---

# Update Rows

You can update a single row or multiple rows in a table in the [Catalyst Data Store](https://docs.catalyst.zoho.com/en/cloud-scale/help/data-store/introduction). The `table_service` reference used in the below code snippets can either be a table instance or table meta created earlier.

### Update a Single Row

This particular method allows you to update a single row by constructing an object with modified values in the required columns. 

Refer the unique ROWID and pass the newly constructed object that contains the updated row details to the `update_row()` method. Please note that it is mandatory to specify the ROWID value here. To know more about the [component instance](https://docs.catalyst.zoho.com/en/sdk/python/v1/cloud-scale/data-store/get-component-instance/)`datastore_service` and the [table instance](https://docs.catalyst.zoho.com/en/sdk/python/v1/cloud-scale/data-store/get-table-instance/)`table_service` used below, please refer to their respective help sections.

**Parameters Used**

<table class="content-table">
	<thead>
		<tr>
			<th class="w20p">Parameter Name</th>
      <th class="w20p">Data Type</th>
      <th class="w60p">Definition</th>
		</tr>
	</thead>
	<tbody>
		<tr>
			<td>`row_data`</td>
      <td>Array</td>
			<td>A **Mandatory** parameter. Will hold the details of the row to be updated in key-value pairs.</td>
		</tr>
	</tbody>
</table>

```python
#Update a single row
datastore_service = app.datastore()
table_service = datastore_service.table("table_name")
row_data = {'name': 'Mathew Jones', 'id': '7211', 'age': '31', 'ROWID': 2136000000011011}
row_response = table_service.update_row(row_data)
logging.info(row_response)

```

A sample response is shown below :

```javascript
{
  CREATORID: "2136000000006003",
  MODIFIEDTIME: "2021-08-17 13:02:11:184",
  CREATEDTIME: "2021-08-16 16:29:10:499",
  Name: "Mathew Jones", 
  ID : "7211",
  Age: 31,
  ROWID: "2136000000011011"
} 

```

### Update Multiple Rows

To update multiple rows, an array of objects is constructed containing the modified row values, which is passed as an argument to the  `update_rows() ` method. The ROWIDs are used in corresponding array objects to refer the specific rows which requires modification. To know more about the [component instance](https://docs.catalyst.zoho.com/en/sdk/python/v1/cloud-scale/data-store/get-component-instance/)`datastore_service` and the [table instance](https://docs.catalyst.zoho.com/en/sdk/python/v1/cloud-scale/data-store/get-table-instance/)`table_service` used below, please refer to their respective help sections.

The response returned here will be resolved to an array of row objects.

**Parameters Used**

<table class="content-table">
	<thead>
		<tr>
			<th class="w20p">Parameter Name</th>
      <th class="w20p">Data Type</th>
      <th class="w60p">Definition</th>
		</tr>
	</thead>
	<tbody>
		<tr>
			<td>`row_data`</td>
      <td>Array</td>
			<td>A **Mandatory** parameter. Will hold the details of the rows to be updated in key-value pairs.</td>
		</tr>
	</tbody>
</table>

```python
#Update multiple rows
datastore_service = app.datastore()
table_service = datastore_service.table("Employee")
row_data = [{'name': 'Mathew Jones', 'id': '7211', 'age': '31', 'ROWID': 2136000000034043},
            {'name': 'Rhonda Watson', 'id': '7212', 'age': '28', 'ROWID': 2136000000034045}]
row_response = table_service.update_rows(row_data)

```

A sample response is shown below :

```javascript
[
  {
    CREATORID: "2136000000006003",
    MODIFIEDTIME: "2021-08-24 13:22:14:718",
    CREATEDTIME: "2021-08-24 13:12:55:999",
    Name: "Mathew Jones",
    ID : "7211",
    Age: 31,
    ROWID: "2136000000034043"
  },
  {
    CREATORID: "2136000000006003",
    MODIFIEDTIME: "2021-08-24 13:22:14:728",
    CREATEDTIME: "2021-08-24 13:12:56:001",
    Name: "Rhonda Watson",
    ID : "7212",
    Age: 28,
    ROWID: "2136000000034045"
  }
]

```

> **Info :** Refer to the [SDK Scopes table](https://docs.catalyst.zoho.com/en/sdk/python/v1/sdk-scopes) to determine the required permission level for performing the above operation.