Amazon Athena is a serverless interactive query service or interactive data analysis tool which is used for processing complex queries and in a lesser amount of time. Due to its serverless feature, it needs no infrastructure to manage or to setup. It can quickly analyze the data with the help of Amazon S3 using standard SQL. It even does not need to load the data in Athena. All we require to do is to point to the data in Amazon S3, define the particular schema and start querying using the standard SQL. With the help of Amazon Athena, we can process any of data, whether it is structured, semi-structured or unstructured data, i.e., it can handle the data in CSV, avro or in columnar formats like parquet and orc.

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