Schema Definition Language (SDL)

Schema Definition Language (SDL) is a type of language used in databases and data management to define the structure of data. It specifies how data is organized, including tables, fields, relationships, and constraints. Think of SDL as a blueprint for a building, outlining what each room (or data element) should look like and how they connect. By establishing this structure, SDL helps ensure that data is stored and managed consistently, making it easier for applications to retrieve and manipulate that data effectively.