Schema Definition Language

Schema Definition Language (SDL) is a way to precisely describe the structure, types, and relationships of data in a database or a data system. It acts like a blueprint, outlining what data exists, how it's organized, and how different pieces are connected. By using SDL, developers can define the rules for storing and accessing data, ensuring consistency and clarity. In systems like GraphQL, SDL provides a human-readable way to specify what data clients can request and what responses will look like, enabling efficient and predictable data management.