There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.

# Use `DeleteDBSubnetGroup` with an AWS SDK
<a name="neptune_example_neptune_DeleteDBSubnetGroup_section"></a>

The following code examples show how to use `DeleteDBSubnetGroup`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example: 
+  [Learn the basics](neptune_example_neptune_Scenario_section.md) 

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#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/neptune#code-examples). 

```
    /**
     * Deletes a subnet group.
     *
     * @param subnetGroupName the identifier of the subnet group to delete
     * @return a {@link CompletableFuture} that completes when the cluster has been deleted
     */
    public CompletableFuture<Void> deleteDBSubnetGroupAsync(String subnetGroupName) {
        DeleteDbSubnetGroupRequest request = DeleteDbSubnetGroupRequest.builder()
                .dbSubnetGroupName(subnetGroupName)
                .build();

        return getAsyncClient().deleteDBSubnetGroup(request)
                .thenAccept(response -> logger.info("🗑️ Deleting Subnet Group: " + subnetGroupName));
    }
```
+  For API details, see [DeleteDBSubnetGroup](https://docs.aws.amazon.com/goto/SdkForJavaV2/neptune-2014-10-31/DeleteDBSubnetGroup) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Python ]

**SDK for Python (Boto3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/neptune#code-examples). 

```
def delete_db_subnet_group(neptune_client, subnet_group_name):
    """
    Deletes a Neptune DB subnet group synchronously using Boto3.

    Args:
        neptune_client (boto3.client): The Neptune client.
        subnet_group_name (str): The name of the DB subnet group to delete.

    Raises:
        ClientError: If the delete operation fails.
    """
    delete_group_request = {
        'DBSubnetGroupName': subnet_group_name
    }

    try:
        neptune_client.delete_db_subnet_group(**delete_group_request)
        print(f"️ Deleting Subnet Group: {subnet_group_name}")

    except ClientError as err:
        code = err.response["Error"]["Code"]
        message = err.response["Error"]["Message"]

        if code == "DBSubnetGroupNotFoundFault":
            print(f"Subnet group '{subnet_group_name}' not found or already deleted.")
        elif code == "AccessDeniedException":
            print("Access denied. Please ensure you have the necessary permissions.")
        else:
            print(f"Couldn't delete subnet group. {code}: {message}")
        raise
```
+  For API details, see [DeleteDBSubnetGroup](https://docs.aws.amazon.com/goto/boto3/neptune-2014-10-31/DeleteDBSubnetGroup) in *AWS SDK for Python (Boto3) API Reference*. 

------