Help Center/ Relational Database Service/ API Reference/ API v3 (Recommended)/ Parameter Management/ Obtaining the Parameter Template of a Specified DB Instance
Updated on 2025-08-20 GMT+08:00

Obtaining the Parameter Template of a Specified DB Instance

Function

This API is used to obtain information about the parameter template of a specified DB instance.

Constraints

  • The following DB engines are supported: MySQL, PostgreSQL, and Microsoft SQL Server.

URI

  • URI format

    GET /v3/{project_id}/instances/{instance_id}/configurations

  • Parameter description
    Table 1 Parameters

    Parameter

    Mandatory

    Description

    project_id

    Yes

    Definition

    Project ID of a tenant in a region.

    To obtain the value, see Obtaining a Project ID.

    Constraints

    N/A

    Range

    N/A

    Default Value

    N/A

    instance_id

    Yes

    Definition

    Instance ID.

    Constraints

    N/A

    Range

    N/A

    Default Value

    N/A

Request

  • Request parameters

    None

  • URI example

    GET https://{endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/instances/dsfae23fsfdsae3435in01/configurations

Response

  • Normal response
    Table 2 Parameters

    Parameter

    Type

    Description

    datastore_version_name

    String

    Definition

    Indicates the database version name.

    Range

    N/A

    datastore_name

    String

    Definition

    Indicates the database name.

    Range

    N/A

    created

    String

    Definition

    Indicates the creation time.

    Range

    The value is in the yyyy-MM-ddTHH:mm:ssZ format. T is the separator between the calendar and the hourly notation of time. Z indicates the time zone offset. For example, in the Beijing time zone, the time zone offset is shown as +0800.

    updated

    String

    Definition

    Indicates the update time.

    Range

    The value is in the yyyy-MM-ddTHH:mm:ssZ format. T is the separator between the calendar and the hourly notation of time. Z indicates the time zone offset. For example, in the Beijing time zone, the time zone offset is shown as +0800.

    configuration_parameters

    Array of objects

    Definition

    Indicates the parameters defined by users based on the default parameter templates.

    For details, see Table 3.

    Table 3 configuration_parameters field data structure description

    Parameter

    Type

    Description

    name

    String

    Definition

    Indicates the parameter name.

    Range

    N/A

    value

    String

    Definition

    Indicates the parameter value.

    Range

    N/A

    restart_required

    Boolean

    Definition

    Indicates whether a reboot is required.

    Range

    • false: A reboot is not required.
    • true: A reboot is required.

    readonly

    Boolean

    Definition

    Indicates whether the parameter is read-only.

    Range

    • false: The parameter is not read-only.
    • true: The parameter is read-only.

    value_range

    String

    Definition

    Indicates the parameter value range.

    Range

    If the parameter type is integer, the value is 0 or 1. If the type is boolean, the value is true or false.

    type

    String

    Definition

    Indicates the parameter type.

    Range

    The value can be string, integer, boolean, list, or float.

    description

    String

    Definition

    Indicates the parameter description.

    Range

    N/A

  • Example normal response
    {
    	"datastore_version_name": "5.7",
    	"datastore_name": "mysql",
    	"created": "2018-10-11 11:40:44",
    	"updated": "2018-10-11 11:40:44",
    	"configuration_parameters": [{
    		"name": "auto_increment_increment",
    		"value": "1",
    		"restart_required": false,
    		"readonly": false,
    		"value_range": "1-65535",
    		"type": "integer",
    		"description": auto_increment_increment and auto_increment_offset are used for master-to-master replication and to control the operations of the AUTO_INCREMENT column.
    	}]
    }
  • Abnormal response

    For details, see Abnormal Request Results.

Status Code

Error Code

For details, see Error Codes.