Description: The ‘Query Result Set’ refers to the collection of data obtained after executing a query in a database. This set is fundamental in the field of data management, as it allows users and applications to access specific information in a structured manner. The results can include rows and columns representing records and attributes of the requested data. The way this set is presented can vary depending on the database management system (DBMS) used, as well as the desired output format, which can be in the form of tables, JSON, XML, among others. Query optimization is crucial for improving the efficiency of retrieving these results, especially in large and complex databases. Tools like Amazon Athena allow SQL queries to be run on data stored in cloud storage, generating result sets that can be visualized and analyzed on various platforms. Additionally, in monitoring environments, query result sets are essential for obtaining metrics and performance data that aid in informed decision-making.