Updated on 2026-01-06 GMT+08:00

Querying Database Specifications

Function

This API is used to query the database specifications of a specified DB engine version.

URI

  • URI format

    GET /v3/{project_id}/flavors/{database_name}?version_name={version_name}&spec_code={spec_code}

  • Parameter description
    Table 1 Parameters

    Parameter

    Mandatory

    Description

    project_id

    Yes

    Definition

    Project ID of a tenant in a region.

    For details about how to obtain the project ID, see Obtaining a Project ID.

    Constraints

    N/A

    Range

    N/A

    Default Value

    N/A

    database_name

    Yes

    Definition

    DB engine name.

    Constraints

    N/A

    Range

    • MySQL
    • PostgreSQL
    • SQLServer

    Default Value

    N/A

    version_name

    No

    Definition

    Database version. For details about how to obtain the database version, see section Querying Version Information About a DB Engine.

    Constraints

    N/A

    Range

    N/A

    Default Value

    N/A

    spec_code

    No

    Definition

    Specification code.

    Constraints

    N/A

    Range

    N/A

    Default Value

    N/A

Request

  • Request parameters

    None

  • URI example

    GET https://{endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/flavors/mysql?version_name=5.7&spec_code=rds.mysql.m1.xlarge.rr

Response

  • Normal response
    Table 2 Parameters

    Parameter

    Type

    Description

    flavors

    Array of objects

    Definition

    DB instance specifications information list.

    For details, see Table 3.

    Table 3 flavors field data structure description

    Parameter

    Type

    Description

    vcpus

    String

    Definition

    Number of vCPUs. For example, the value 1 indicates 1 vCPU.

    Range

    N/A

    ram

    Integer

    Definition

    Memory size in GB.

    Range

    N/A

    spec_code

    String

    Definition

    Resource specification code. Use rds.mysql.m1.xlarge.rr as an example.

    • rds indicates the RDS product.
    • mysql indicates the DB engine.
    • m1.xlarge indicates the high memory performance specifications.
    • rr indicates read replicas (.ha indicates primary/standby DB instances).

    Range

    N/A

    instance_mode

    String

    Definition

    Instance type.

    Range

    • ha indicates primary/standby instances.
    • replica indicates read replicas.
    • single indicates single DB instances.

    az_status

    Map<String, String>

    Definition

    Specification status in an AZ.

    Range

    • normal: The specifications in the AZ are available.
    • unsupported: The specifications are not supported by the AZ.
    • sellout: The specifications in the AZ are sold out.
  • Example normal response
    {
    	"flavors": [{
    		"vcpus": "1",
    		"ram": 2,
    		"spec_code": "rds.mysql.c2.medium.ha",
    		"instance_mode": "ha",
    		"az_status": {
    			"az1": "normal",
    			"az2": "normal"
    		}
    	}, {
    		"vcpus": "1",
    		"ram": 2,
    		"spec_code": "rds.mysql.c2.medium.rr",
    		"instance_mode": "replica",
    		"az_status": {
    			"az1": "normal",
    			"az2": "normal"
    		}
    	}]
    }
  • Abnormal response

    For details, see Abnormal Request Results.

Status Code

Error Code

For details, see Error Codes.