# ClusteringKey
<a name="API_ClusteringKey"></a>

The optional clustering column portion of your primary key determines how the data is clustered and sorted within each partition.

## Contents
<a name="API_ClusteringKey_Contents"></a>

 ** name **   <a name="keyspaces-Type-ClusteringKey-name"></a>
The name(s) of the clustering column(s).  
Type: String  
Required: Yes

 ** orderBy **   <a name="keyspaces-Type-ClusteringKey-orderBy"></a>
Sets the ascendant (`ASC`) or descendant (`DESC`) order modifier.  
Type: String  
Valid Values: `ASC | DESC`   
Required: Yes

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/keyspaces-2022-02-10/ClusteringKey) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/keyspaces-2022-02-10/ClusteringKey) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/keyspaces-2022-02-10/ClusteringKey)