Schema

A schema represents the blueprint of a database, defining its structure and organization. It outlines how data is organized and how the relationships among data are structured. Typically described using formal languages like SQL, a schema includes tables, columns, data types, and the relationships between tables, such as primary and foreign keys. It acts as a guide for database management systems (DBMS) to enforce data integrity and facilitate efficient data retrieval. Understanding the schema is crucial for developers and database administrators to design and maintain a database that meets the requirements of applications and users.