# S3ReferenceDataSourceDescription
<a name="API_S3ReferenceDataSourceDescription"></a>

For a SQL-based Kinesis Data Analytics application, provides the bucket name and object key name that stores the reference data.

## Contents
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 ** BucketARN **   <a name="APIReference-Type-S3ReferenceDataSourceDescription-BucketARN"></a>
The Amazon Resource Name (ARN) of the S3 bucket.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 2048.  
Pattern: `arn:.*`   
Required: Yes

 ** FileKey **   <a name="APIReference-Type-S3ReferenceDataSourceDescription-FileKey"></a>
Amazon S3 object key name.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1024.  
Required: Yes

 ** ReferenceRoleARN **   <a name="APIReference-Type-S3ReferenceDataSourceDescription-ReferenceRoleARN"></a>
The ARN of the IAM role that Kinesis Data Analytics can assume to read the Amazon S3 object on your behalf to populate the in-application reference table.   
Provided for backward compatibility. Applications that are created with the current API version have an application-level service execution role rather than a resource-level role.
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 2048.  
Pattern: `arn:.*`   
Required: No

## 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/kinesisanalyticsv2-2018-05-23/S3ReferenceDataSourceDescription) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/kinesisanalyticsv2-2018-05-23/S3ReferenceDataSourceDescription) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/kinesisanalyticsv2-2018-05-23/S3ReferenceDataSourceDescription)