Loading Large Data into Amazon Athena Using Multiple Files
Amazon Athena is a powerful tool for querying large datasets stored in Amazon S3. One of the advantages of using Athena is its ability to handle multiple files efficiently.
Using Multiple Files
You can load large datasets into Amazon Athena by placing multiple files in the same folder within Amazon S3. When you do this, Athena will append the data from these files into the specified table without creating duplicates. This feature is particularly useful for managing large volumes of data that may be split across several files.
Supported File Formats
Athena supports a variety of file formats, allowing for flexibility in how data is stored and queried. The supported formats include CSV, JSON, Parquet, and ORC etc.,
Conclusion
Utilizing multiple files in Amazon S3 for loading data into Amazon Athena can streamline the process of managing large datasets. By understanding the supported file formats and how to organize your data, you can take full advantage of Athena’s capabilities.
Additional References
