# DescribeEngineDefaultParameters
<a name="API_DescribeEngineDefaultParameters"></a>

Returns the default engine and system parameter information for the specified database engine.

## Request Parameters
<a name="API_DescribeEngineDefaultParameters_RequestParameters"></a>

 For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

 ** DBParameterGroupFamily **   
The name of the DB parameter group family.  
Valid Values:  
+  `aurora-mysql5.7` 
+  `aurora-mysql8.0` 
+  `aurora-postgresql10` 
+  `aurora-postgresql11` 
+  `aurora-postgresql12` 
+  `aurora-postgresql13` 
+  `aurora-postgresql14` 
+  `custom-oracle-ee-19` 
+  `custom-oracle-ee-cdb-19` 
+  `db2-ae` 
+  `db2-se` 
+  `mariadb10.2` 
+  `mariadb10.3` 
+  `mariadb10.4` 
+  `mariadb10.5` 
+  `mariadb10.6` 
+  `mysql5.7` 
+  `mysql8.0` 
+  `oracle-ee-19` 
+  `oracle-ee-cdb-19` 
+  `oracle-ee-cdb-21` 
+  `oracle-se2-19` 
+  `oracle-se2-cdb-19` 
+  `oracle-se2-cdb-21` 
+  `postgres10` 
+  `postgres11` 
+  `postgres12` 
+  `postgres13` 
+  `postgres14` 
+  `sqlserver-ee-11.0` 
+  `sqlserver-ee-12.0` 
+  `sqlserver-ee-13.0` 
+  `sqlserver-ee-14.0` 
+  `sqlserver-ee-15.0` 
+  `sqlserver-ex-11.0` 
+  `sqlserver-ex-12.0` 
+  `sqlserver-ex-13.0` 
+  `sqlserver-ex-14.0` 
+  `sqlserver-ex-15.0` 
+  `sqlserver-se-11.0` 
+  `sqlserver-se-12.0` 
+  `sqlserver-se-13.0` 
+  `sqlserver-se-14.0` 
+  `sqlserver-se-15.0` 
+  `sqlserver-web-11.0` 
+  `sqlserver-web-12.0` 
+  `sqlserver-web-13.0` 
+  `sqlserver-web-14.0` 
+  `sqlserver-web-15.0` 
Type: String  
Required: Yes

 **Filters.Filter.N**   
A filter that specifies one or more parameters to describe.  
The only supported filter is `parameter-name`. The results list only includes information about the parameters with these names.  
Type: Array of [Filter](API_Filter.md) objects  
Required: No

 ** Marker **   
An optional pagination token provided by a previous `DescribeEngineDefaultParameters` request. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by `MaxRecords`.  
Type: String  
Required: No

 ** MaxRecords **   
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 you can retrieve the remaining results.  
Default: 100  
Constraints: Minimum 20, maximum 100.  
Type: Integer  
Required: No

## Response Elements
<a name="API_DescribeEngineDefaultParameters_ResponseElements"></a>

The following element is returned by the service.

 ** EngineDefaults **   
Contains the result of a successful invocation of the `DescribeEngineDefaultParameters` action.  
Type: [EngineDefaults](API_EngineDefaults.md) object

## Errors
<a name="API_DescribeEngineDefaultParameters_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

## Examples
<a name="API_DescribeEngineDefaultParameters_Examples"></a>

### Example
<a name="API_DescribeEngineDefaultParameters_Example_1"></a>

This example illustrates one usage of DescribeEngineDefaultParameters.

#### Sample Request
<a name="API_DescribeEngineDefaultParameters_Example_1_Request"></a>

```
https://rds.us-west-2.amazonaws.com/
   ?Action=DescribeEngineDefaultParameters
   &DBParameterGroupFamily=mysql5.1
   &MaxRecords=100
   &SignatureMethod=HmacSHA256
   &SignatureVersion=4
   &Version=2014-10-31
   &X-Amz-Algorithm=AWS4-HMAC-SHA256
   &X-Amz-Credential=AKIADQKE4SARGYLE/20140421/us-west-2/rds/aws4_request
   &X-Amz-Date=20140421T194732Z
   &X-Amz-SignedHeaders=content-type;host;user-agent;x-amz-content-sha256;x-amz-date
   &X-Amz-Signature=747cc243a8a2385b0b06a9e2d145d08b905a39620b2782edd8382ea1712cf826
```

#### Sample Response
<a name="API_DescribeEngineDefaultParameters_Example_1_Response"></a>

```
<DescribeEngineDefaultParametersResponse xmlns="http://rds.amazonaws.com/doc/2014-10-31/">
  <DescribeEngineDefaultParametersResult>
    <EngineDefaults>
      <DBParameterGroupFamily>mysql5.1</DBParameterGroupFamily>
      <Marker>bG9nX3FZXJpZ4Nfbm90X3VzaW5nX2luZGV4Z1M=</Marker>
      <Parameters>
        <Parameter>
          <DataType>boolean</DataType>
          <Source>engine-default</Source>
          <IsModifiable>false</IsModifiable>
          <Description>Controls whether user-defined functions that have only an xxx symbol for the main function can be loaded</Description>
          <ApplyType>static</ApplyType>
          <AllowedValues>0,1</AllowedValues>
          <ParameterName>allow-suspicious-udfs</ParameterName>
        </Parameter>
        <Parameter>
          <DataType>integer</DataType>
          <Source>engine-default</Source>
          <IsModifiable>true</IsModifiable>
          <Description>Intended for use with master-to-master replication, and can be used to control the operation of AUTO_INCREMENT columns</Description>
          <ApplyType>dynamic</ApplyType>
          <AllowedValues>1-65535</AllowedValues>
          <ParameterName>auto_increment_increment</ParameterName>
        </Parameter>
        <Parameter>
          <DataType>integer</DataType>
          <Source>engine-default</Source>
          <IsModifiable>true</IsModifiable>
          <Description>Determines the starting point for the AUTO_INCREMENT column value</Description>
          <ApplyType>dynamic</ApplyType>
          <AllowedValues>1-65535</AllowedValues>
          <ParameterName>auto_increment_offset</ParameterName>
        </Parameter>
      </Parameters>
    </EngineDefaults>
  </DescribeEngineDefaultParametersResult>
  <ResponseMetadata>
    <RequestId>b789ce01-b98c-11d3-a907-5a2c468b9cb0</RequestId>
  </ResponseMetadata>
</DescribeEngineDefaultParametersResponse>
```

## See Also
<a name="API_DescribeEngineDefaultParameters_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/rds-2014-10-31/DescribeEngineDefaultParameters) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeEngineDefaultParameters) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeEngineDefaultParameters) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/rds-2014-10-31/DescribeEngineDefaultParameters) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeEngineDefaultParameters) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/rds-2014-10-31/DescribeEngineDefaultParameters) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/rds-2014-10-31/DescribeEngineDefaultParameters) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/rds-2014-10-31/DescribeEngineDefaultParameters) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeEngineDefaultParameters) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/rds-2014-10-31/DescribeEngineDefaultParameters)