RDS / Client / describe_db_parameters



Returns the detailed parameter list for a particular DB parameter group.

See also: AWS API Documentation

Request Syntax

response = client.describe_db_parameters(
            'Name': 'string',
            'Values': [
  • DBParameterGroupName (string) –


    The name of a specific DB parameter group to return details for.


    • If supplied, must match the name of an existing DBParameterGroup.

  • Source (string) –

    The parameter types to return.

    Default: All parameter types returned

    Valid Values: user | system | engine-default

  • Filters (list) –

    This parameter isn’t currently supported.

    • (dict) –

      A filter name and value pair that is used to return a more specific list of results from a describe operation. Filters can be used to match a set of resources by specific criteria, such as IDs. The filters supported by a describe operation are documented with the describe operation.


      Currently, wildcards are not supported in filters.

      The following actions can be filtered:

      • DescribeDBClusterBacktracks

      • DescribeDBClusterEndpoints

      • DescribeDBClusters

      • DescribeDBInstances

      • DescribeDBRecommendations

      • DescribeDBShardGroups

      • DescribePendingMaintenanceActions

      • Name (string) – [REQUIRED]

        The name of the filter. Filter names are case-sensitive.

      • Values (list) – [REQUIRED]

        One or more filter values. Filter values are case-sensitive.

        • (string) –

  • MaxRecords (integer) –

    The maximum number of records to include in the response. If more records exist than the specified MaxRecords value, a pagination token called a marker is included in the response so that you can retrieve the remaining results.

    Default: 100

    Constraints: Minimum 20, maximum 100.

  • Marker (string) – An optional pagination token provided by a previous DescribeDBParameters request. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by MaxRecords.

Return type:



Response Syntax

    'Parameters': [
            'ParameterName': 'string',
            'ParameterValue': 'string',
            'Description': 'string',
            'Source': 'string',
            'ApplyType': 'string',
            'DataType': 'string',
            'AllowedValues': 'string',
            'IsModifiable': True|False,
            'MinimumEngineVersion': 'string',
            'ApplyMethod': 'immediate'|'pending-reboot',
            'SupportedEngineModes': [
    'Marker': 'string'

Response Structure

  • (dict) –

    Contains the result of a successful invocation of the DescribeDBParameters action.

    • Parameters (list) –

      A list of Parameter values.

      • (dict) –

        This data type is used as a request parameter in the ModifyDBParameterGroup and ResetDBParameterGroup actions.

        This data type is used as a response element in the DescribeEngineDefaultParameters and DescribeDBParameters actions.

        • ParameterName (string) –

          The name of the parameter.

        • ParameterValue (string) –

          The value of the parameter.

        • Description (string) –

          Provides a description of the parameter.

        • Source (string) –

          The source of the parameter value.

        • ApplyType (string) –

          Specifies the engine specific parameters type.

        • DataType (string) –

          Specifies the valid data type for the parameter.

        • AllowedValues (string) –

          Specifies the valid range of values for the parameter.

        • IsModifiable (boolean) –

          Indicates whether ( true) or not ( false) the parameter can be modified. Some parameters have security or operational implications that prevent them from being changed.

        • MinimumEngineVersion (string) –

          The earliest engine version to which the parameter can apply.

        • ApplyMethod (string) –

          Indicates when to apply parameter updates.

        • SupportedEngineModes (list) –

          The valid DB engine modes.

          • (string) –

    • Marker (string) –

      An optional pagination token provided by a previous request. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by MaxRecords.


  • RDS.Client.exceptions.DBParameterGroupNotFoundFault


This example lists information for up to the first 20 system parameters for the specified DB parameter group.

response = client.describe_db_parameters(


Expected Output:

    'ResponseMetadata': {
        '...': '...',