Examples of using Amazon S3 Select on an object - Amazon Simple Storage Service
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Examples of using Amazon S3 Select on an object

Important

Amazon S3 Select is no longer available to new customers. Existing customers of Amazon S3 Select can continue to use the feature as usual. Learn more

You can use S3 Select to select content from one object by using the Amazon S3 console, the REST API, and the Amazon SDKs.

For more information about supported SQL functions for S3 Select, see SQL functions.

To select content from an object in the Amazon S3 console

  1. Sign in to the Amazon Web Services Management Console and open the Amazon S3 console at https://console.aws.amazon.com/s3/.

  2. In the left navigation pane, choose Buckets.

  3. Choose the bucket that contains the object that you want to select content from, and then choose the name of the object.

  4. Choose Object actions, and choose Query with S3 Select.

  5. Configure Input settings, based on the format of your input data.

  6. Configure Output settings, based on the format of the output that you want to receive.

  7. To extract records from the chosen object, under SQL query, enter the SELECT SQL commands. For more information on how to write SQL commands, see SQL reference for Amazon S3 Select.

  8. After you enter SQL queries, choose Run SQL query. Then, under Query results, you can see the results of your SQL queries.

You can use the Amazon SDKs to select content from an object. However, if your application requires it, you can send REST requests directly. For more information about the request and response format, see SelectObjectContent.

You can use Amazon S3 Select to select some of the content of an object by using the selectObjectContent method. If this method is successful, it returns the results of the SQL expression.

Java

To use Amazon S3 Select with the Amazon SDK for Java, you can return the value of the first column for each record that is stored in an object that contains data stored in CSV format. You can also request Progress and Stats messages to be returned. You must provide a valid bucket name and an object that contains data in CSV format.

To use Amazon S3 Select with the Amazon SDK for Java, you can return the value of the first column for each record that is stored in an object that contains data stored in CSV format. You can also request Progress and Stats messages to be returned. You must provide a valid bucket name and an object that contains data in CSV format.

For examples of how to use Amazon S3 Select with the Amazon SDK for Java, see Select content from an object in the Amazon S3 API Reference.

JavaScript

For a JavaScript example that uses the Amazon SDK for JavaScript with the S3 SelectObjectContent API operation to select records from JSON and CSV files that are stored in Amazon S3, see the blog post Introducing support for Amazon S3 Select in the Amazon SDK for JavaScript.

Python

For a Python example of using SQL queries to search through data that was loaded to Amazon S3 as a comma-separated value (CSV) file by using S3 Select, see the blog post Querying data without servers or databases using Amazon S3 Select.