Executing SQL queries is a fundamental aspect of working with relational databases. SQL, or Structured Query Language, allows users to communicate with databases to perform various operations such as retrieving, updating, inserting, and deleting data. When a SQL query is executed, the database management system interprets the command, processes it, and returns the desired results. Understanding the order of execution and the underlying mechanics of SQL queries is crucial for optimizing performance and ensuring accurate data manipulation. This knowledge empowers data analysts and developers to write efficient queries that can handle large datasets effectively.