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Database Autonomy Service:GetInstanceSqlOptimizeStatistic

Last Updated:Mar 13, 2026

Queries statistics on automatic SQL optimization events within a period of time, such as the total number of optimization events and the maximum improvement.

Operation description

Before you call this operation, take note of the following items:

  • If you use an Alibaba Cloud SDK or a Database Autonomy Service (DAS) SDK to call this API operation, we recommend that you use the latest version of the SDK.

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

  • The database engine is ApsaraDB RDS for MySQL or PolarDB for MySQL.

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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:GetInstanceSqlOptimizeStatistic

get

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

InstanceId

string

Yes

The database instance ID.

Note

The database instance must be an ApsaraDB RDS for MySQL instance or a PolarDB for MySQL cluster.

pc-wz90h9560rvdz****

StartTime

string

Yes

The beginning of 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.

1661308902060

EndTime

string

Yes

The end of 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.

1662518540764

NodeId

string

No

The node ID.

Note

For ApsaraDB RDS for MySQL Cluster Edition instances or PolarDB for MySQL clusters, you must specify the node ID.

pi-bp12v7243x012****

Threshold

string

No

The duration threshold for automatic SQL optimization events. After this parameter is specified, the system collects statistics on automatic SQL optimization events whose duration does not exceed the specified threshold.

Note

This parameter is a reserved parameter and does not take effect.

None

FilterEnable

string

No

Specifies whether to filter instances for which DAS Enterprise Edition is enabled. Valid values:

  • true

  • false

Note

If you set this parameter to true, only database instances for which DAS Enterprise Edition is disabled are queried. If you set this parameter to false, all database instances are queried.

false

UseMerging

string

No

Specifies whether to merge automatic SQL optimization events. Valid values:

  • true: merges automatic SQL optimization events.

  • false: does not merge automatic SQL optimization events.

Note

This parameter is a reserved parameter and does not take effect.

true

Response elements

Element

Type

Description

Example

object

The data returned.

Code

string

The HTTP status code returned.

200

Message

string

The returned message.

Note

If the request was successful, Successful is returned. If the request failed, an error message such as an error code is returned.

Successful

Data

object

The details of the automatic SQL optimization events.

count

integer

The total number of automatic SQL optimization events.

16

improvement

number

The multiple of the maximum improvement for returned automatic SQL optimization events.

1003

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": {
    "count": 16,
    "improvement": 1003
  },
  "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.