The Sequel System is a method used for managing and organizing data in databases. It allows users to create, read, update, and delete data efficiently through a structured query language known as SQL. This system is widely used in various applications, from small websites to large enterprise systems, due to its ability to handle large volumes of data. One of the key features of the Sequel System is its relational database model, which organizes data into tables that can be linked through relationships. This makes it easier to retrieve and manipulate data, ensuring consistency and integrity. Popular database management systems that utilize the Sequel System include MySQL, PostgreSQL, and Microsoft SQL Server.