Help Center/ Relational Database Service/ API Reference/ API v3 (Recommended)/ DB Instance Management/ Changing a DB Instance Name
Updated on 2026-02-04 GMT+08:00
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Changing a DB Instance Name

Function

This API is used to change a DB instance name.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.
  • If you are using role/policy-based authorization, see Permissions and Supported Actions for details on the required permissions.
  • If you are using identity policy-based authorization, the following identity policy-based permissions are required.

Action

Access Level

Resource Type (*: required)

Condition Key

Alias

Dependencies

rds:instance:updateName

write

instance

g:EnterpriseProjectId

g:ResourceTag/<tag-key>

rds:instance:modify

-

URI

  • URI format

    PUT /v3/{project_id}/instances/{instance_id}/name

  • Parameter description
    Table 1 Parameter description

    Name

    Mandatory

    Description

    project_id

    Yes

    Definition

    Project ID of a tenant in a region.

    Constraints

    The value cannot be empty.

    Range

    To obtain the value, see Obtaining a Project ID.

    Default Value

    N/A

    instance_id

    Yes

    Definition

    Instance ID.

    Constraints

    The value cannot be empty.

    Range

    You can obtain the value of this parameter from id in Table 4 by calling the API for querying DB instances.

    Default Value

    N/A

Request

Table 2 Parameter description

Name

Mandatory

Type

Description

name

Yes

String

Definition

Instance name.

Constraints

N/A

Range

Instances of the same type can have the same name under the same tenant. Valid value:

  • RDS for MySQL: The DB instance name must be 4 to 64 bytes long, start with a letter, and contain only letters (case-sensitive), digits, hyphens (-), periods (.), and underscores (_).
  • RDS for PostgreSQL and RDS for SQL Server: The DB instance name must be 4 to 64 bytes long, start with a letter, and contain only letters (case-sensitive), digits, hyphens (-), and underscores (_).

Default Value

N/A

Example Request

Change the name of a DB instance.

PUT https://{endpoint}/v3/054ea741f700d4a32f1bc00f5c80dd4c/instances/5b409baece064984a1b3eef6addae50cin01/name

{
     "name": "Test_2345674"
}

Response

  • Normal response

    None

  • Example normal response

    None

Status Code

Error Code

For details, see Error Codes.

Parent topic: DB Instance Management