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Database Autonomy Service:GetQueryOptimizeDataTop

Last Updated:Mar 13, 2026

Queries information about the best-performing and worst-performing instances based on query governance data.

Operation description

  • If you use an Alibaba Cloud SDK, make sure that the aliyun-sdk-core version is later than V2.1.8. We recommend that you use the latest version.

  • The version of your Database Autonomy Service (DAS) SDK must be V2.1.8 or later.

  • If you use an SDK to call API operations of DAS, you must set the region ID to cn-shanghai.

  • This operation supports the following database engines:

    • ApsaraDB RDS for MySQL

    • PolarDB for MySQL

    • ApsaraDB RDS for PostgreSQL

Try it now

Try this API in OpenAPI Explorer, no manual signing needed. Successful calls auto-generate SDK code matching your parameters. Download it with built-in credential security for local usage.

Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

hdm:GetQueryOptimizeDataTop

get

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

Engine

string

Yes

The database engine. Valid values:

  • MySQL

  • PolarDBMySQL

  • PostgreSQL

MySQL

InstanceIds

string

No

The instance IDs. Separate multiple IDs with commas (,).

rm-2ze8g2am97624****

TagNames

string

No

The reserved parameter.

None

Time

string

Yes

The time range to query. Set this parameter to a UNIX timestamp representing the number of milliseconds that have elapsed since January 1, 1970, 00:00:00 UTC.

1642953600000

Type

string

Yes

The type of instances that you want to query. Valid values:

  • RED: the best-performing instances

  • BLACK: the worst-performing instances

RED

Region

string

No

The region in which the instance resides. Valid values:

  • cn-china: Chinese mainland

  • cn-hongkong: China (Hong Kong)

  • ap-southeast-1: Singapore

This parameter takes effect only if InstanceIds is left empty. If you leave InstanceIds empty, the system obtains data from the region set by Region. By default, Region is set to cn-china. If you specify InstanceIds, Region does not take effect and the system obtains data from the region in which the first specified instance resides.****

Note

Set this parameter to cn-china for all your instances that reside in the regions in the Chinese mainland.

cn-china

Response elements

Element

Type

Description

Example

object

Code

string

The HTTP status code returned.

200

Message

string

The returned message.

Successful

Data

object

The detailed information.

Total

integer

The total number of entries returned.

10

PageNo

integer

The reserved parameter.

None

PageSize

integer

The reserved parameter.

None

Extra

string

The reserved parameter.

None

List

array<object>

The information about the instances.

object

InstanceId

string

The instance ID.

rm-2ze8g2am97624****

Type

string

The metric name. Valid values:

  • sqlExecuteCount: the number of slow SQL executions.

  • optimizedSqlExecuteCount: the number of slow SQL executions that need to be optimized.

sqlExecuteCount

Value

number

The metric value.

100

RequestId

string

The request ID.

B6D17591-B48B-4D31-9CD6-9B9796B2****

Success

string

Indicates whether the request was successful. Valid values:

  • true: The request was successful.

  • false: The request failed.

true

Examples

Success response

JSON format

{
  "Code": "200",
  "Message": "Successful",
  "Data": {
    "Total": 10,
    "PageNo": 0,
    "PageSize": 0,
    "Extra": "None",
    "List": [
      {
        "InstanceId": "rm-2ze8g2am97624****",
        "Type": "sqlExecuteCount",
        "Value": 100
      }
    ]
  },
  "RequestId": "B6D17591-B48B-4D31-9CD6-9B9796B2****",
  "Success": "true"
}

Error codes

HTTP status code

Error code

Error message

Description

400 InvalidParams The request parameters are invalid.
403 NoPermission You are not authorized to do this action.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.