Amazon Athena is a serverless and interactive query service that makes it easy to analyze data in Amazon S3 using standard SQL. Amazon Athena Federated Query can be used to run SQL queries across data stored in relational, non-relational, object, and custom data sources. Athena uses data source connectors that run on AWS Lambda to execute federated queries. The data source connectors help connect with data sources like CloudWatch, DocumentDB, DynamoDB, HBase, JDBC data sources (like Redshift, MySql, SQL Server) etc.
