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ApsaraDB RDS:DescribeParameterGroup

Last Updated:Aug 28, 2026

Queries the information about a parameter template.

Operation description

Supported database engines

  • MySQL
  • PostgreSQL

References

Note Before you call this operation, carefully read the following documentation. Make sure that you fully understand the prerequisites and impacts for calling this operation.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • For mandatory resource types, indicate with a prefix of * .
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
Operation Access level Resource type Condition key Associated operation
rds:DescribeParameterGroup get
*All Resources
*
    none
none

Request parameters

Parameter Type Required Description Example
ParameterGroupId string Yes

The parameter template ID. You can call the DescribeParameterGroups operation to query the parameter template ID.

rpg-dp****
RegionId string Yes

The region ID. You can call the DescribeRegions operation to query the most recent region list.

cn-hangzhou

Response parameters

Parameter Type Description Example
object

The response parameters.

RequestId string

The request ID.

498AE8CA-8C81-4A01-AF37-2B902014ED30
ParamGroup array<object>

The information about the parameter template.

ParameterGroup object
UpdateTime string

The time when the parameter template was last updated. The time follows the ISO 8601 standard in the yyyy-MM-ddTHH:mm:ssZ format. The time is displayed in UTC.

2019-10-22T06:07:54Z
ParameterGroupDesc string

The description of the parameter template.

testGroup1
CreateTime string

The time when the parameter template was created.

2019-10-22T06:02:53Z
ForceRestart integer

Indicates whether the restart of an instance is required for the parameter template to take effect. Valid values:

  • 0: A restart is not required.
  • 1: A restart is required.
1
ParameterGroupId string

The ID of the parameter template.

rpg-dp****
ParameterGroupName string

The name of the parameter template.

test123456
Engine string

The database engine of the instance.

mysql
ParamCounts integer

The number of parameters in the parameter template.

2
EngineVersion string

The database engine version of the instance.

5.6
ParameterGroupType integer

The type of the parameter template. Valid values:

  • 0: the default parameter template.
  • 1: a custom parameter template.
  • 2: an automatic backup parameter template. After you apply this type of template, the system automatically backs up the original parameter settings and saves the backup as a template.
1
ParamDetail array<object>

The details of the parameters.

ParameterDetail object
ParamName string

The name of the parameter.

back_log
ParamValue string

The value of the parameter.

2000
RelatedCustinsInfo array<object>

The information about the instance to which the parameter template is applied.

Note This parameter is available only for ApsaraDB RDS for PostgreSQL instances.
RelatedCustinsInfo object
DBInstanceName string

The instance ID.

rm-bp170****
AppliedTime string

The time when the parameter template was applied.

2022-10-17T03:19:02Z

Examples

Sample success responses

JSONformat

{
  "RequestId": "498AE8CA-8C81-4A01-AF37-2B902014ED30",
  "ParamGroup": {
    "ParameterGroup": [
      {
        "UpdateTime": "2019-10-22T06:07:54Z",
        "ParameterGroupDesc": "testGroup1",
        "CreateTime": "2019-10-22T06:02:53Z",
        "ForceRestart": 1,
        "ParameterGroupId": "rpg-dp****",
        "ParameterGroupName": "test123456",
        "Engine": "mysql",
        "ParamCounts": 2,
        "EngineVersion": 5.6,
        "ParameterGroupType": 1,
        "ParamDetail": {
          "ParameterDetail": [
            {
              "ParamName": "back_log",
              "ParamValue": 2000
            }
          ]
        }
      }
    ]
  },
  "RelatedCustinsInfo": {
    "RelatedCustinsInfo": [
      {
        "DBInstanceName": "rm-bp170****",
        "AppliedTime": "2022-10-17T03:19:02Z"
      }
    ]
  }
}

Error codes

HTTP status code Error code Error message Description
400 ParamGroupsNotExist The specified paramGroups does not exist. The parameter template cannot be found. You can call the DescribeParameterGroups operation to query the parameter templates that are available to a specified region.
403 InvalidUserOperatorPermission The user permission does not support this operation. The user is not authorized to perform this operation.

For a list of error codes, visit the Service error codes.

Change history

Change time Summary of changes Operation
2022-10-14 The Error code has changed. The response structure of the API has changed View Change Details