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Amazon Relational Database Service
API Reference (API Version 2014-10-31)

ModifyDBSubnetGroup

Modifies an existing DB subnet group. DB subnet groups must contain at least one subnet in at least two AZs in the AWS Region.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

DBSubnetGroupDescription

The description for the DB subnet group.

Type: String

Required: No

DBSubnetGroupName

The name for the DB subnet group. This value is stored as a lowercase string. You can't modify the default subnet group.

Constraints: Must match the name of an existing DBSubnetGroup. Must not be default.

Example: mySubnetgroup

Type: String

Required: Yes

SubnetIds.SubnetIdentifier.N

The EC2 subnet IDs for the DB subnet group.

Type: Array of strings

Required: Yes

Response Elements

The following element is returned by the service.

DBSubnetGroup

Contains the details of an Amazon RDS DB subnet group.

This data type is used as a response element in the DescribeDBSubnetGroups action.

Type: DBSubnetGroup object

Errors

For information about the errors that are common to all actions, see Common Errors.

DBSubnetGroupDoesNotCoverEnoughAZs

Subnets in the DB subnet group should cover at least two Availability Zones unless there is only one Availability Zone.

HTTP Status Code: 400

DBSubnetGroupNotFoundFault

DBSubnetGroupName does not refer to an existing DB subnet group.

HTTP Status Code: 404

DBSubnetQuotaExceededFault

Request would result in user exceeding the allowed number of subnets in a DB subnet groups.

HTTP Status Code: 400

InvalidSubnet

The requested subnet is invalid, or multiple subnets were requested that are not all in a common VPC.

HTTP Status Code: 400

SubnetAlreadyInUse

The DB subnet is already in use in the Availability Zone.

HTTP Status Code: 400

Example

Sample Request

https://rds.us-east-1.amazonaws.com/ ?Action=ModifyDBSubnetGroup &DBSubnetGroupDescription=A%20new%20Description &DBSubnetGroupName=myawsuser-sngrp &SignatureMethod=HmacSHA256 &SignatureVersion=4 &SubnetIds.member.1=subnet-e4d398a1 &SubnetIds.member.2=subnet-c2bdb6ba &Version=2014-09-01 &X-Amz-Algorithm=AWS4-HMAC-SHA256 &X-Amz-Credential=AKIADQKE4SARGYLE/20140425/us-east-1/rds/aws4_request &X-Amz-Date=20140425T200214Z &X-Amz-SignedHeaders=content-type;host;user-agent;x-amz-content-sha256;x-amz-date &X-Amz-Signature=213c429d925cb1608fc13a1dde48715bcac3b0794536ee90beac34203265f9af

Sample Response

<ModifyDBSubnetGroupResponse xmlns="http://rds.amazonaws.com/doc/2014-09-01/"> <ModifyDBSubnetGroupResult> <DBSubnetGroup> <VpcId>vpc-33ac97ea</VpcId> <SubnetGroupStatus>Complete</SubnetGroupStatus> <DBSubnetGroupDescription>A new Description</DBSubnetGroupDescription> <DBSubnetGroupName>myawsuser-sngrp</DBSubnetGroupName> <Subnets> <Subnet> <SubnetStatus>Active</SubnetStatus> <SubnetIdentifier>subnet-e4d398a1</SubnetIdentifier> <SubnetAvailabilityZone> <Name>us-east-1b</Name> <ProvisionedIopsCapable>false</ProvisionedIopsCapable> </SubnetAvailabilityZone> </Subnet> <Subnet> <SubnetStatus>Active</SubnetStatus> <SubnetIdentifier>subnet-c2bdb6ba</SubnetIdentifier> <SubnetAvailabilityZone> <Name>us-east-1c</Name> <ProvisionedIopsCapable>false</ProvisionedIopsCapable> </SubnetAvailabilityZone> </Subnet> </Subnets> </DBSubnetGroup> </ModifyDBSubnetGroupResult> <ResponseMetadata> <RequestId>6dd028be-bba3-11d3-f4c6-37db295f7674</RequestId> </ResponseMetadata> </ModifyDBSubnetGroupResponse>

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: