Description: Multi-query in Amazon Athena refers to the ability to execute multiple queries simultaneously on large volumes of data stored in Amazon S3. This functionality allows users to perform complex analyses and obtain results more efficiently, without the need to load data into a traditional database system. Athena uses a query engine based on Presto, enabling it to process SQL queries quickly and at scale. Multi-query is particularly useful in environments where real-time data analysis is required, as it allows analysts and data scientists to gain insights rapidly and effectively. Additionally, this feature facilitates collaboration among teams, as multiple users can run their own queries without interfering with each other. Athena’s flexibility to handle different data formats, such as CSV, JSON, and Parquet, combined with its multi-query capability, makes it a powerful tool for data exploration and analysis in cloud environments.