# CreateColumnsOperation
<a name="API_CreateColumnsOperation"></a>

A transform operation that creates calculated columns. Columns created in one such operation form a lexical closure.

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

**Note**  
In the following list, the required parameters are described first.

 ** Columns **   <a name="QS-Type-CreateColumnsOperation-Columns"></a>
Calculated columns to create.  
Type: Array of [CalculatedColumn](API_CalculatedColumn.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 256 items.  
Required: Yes

 ** Alias **   <a name="QS-Type-CreateColumnsOperation-Alias"></a>
Alias for this operation.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.  
Required: No

 ** Source **   <a name="QS-Type-CreateColumnsOperation-Source"></a>
The source transform operation that provides input data for creating new calculated columns.  
Type: [TransformOperationSource](API_TransformOperationSource.md) object  
Required: No

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

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/quicksight-2018-04-01/CreateColumnsOperation) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/quicksight-2018-04-01/CreateColumnsOperation) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/quicksight-2018-04-01/CreateColumnsOperation)