In a database, an entity refers to a distinct object or concept that is represented as a single unit of data. It can be something concrete, like a person or a product, or something abstract, like an event or a category. Entities are typically organized in tables, where each row represents an instance of the entity and each column represents a specific attribute or characteristic of that entity. For example, in a database for a company, the “Employee” entity could have attributes such as “employee_id,” “name,” and “department.” Entities help structure and organize data in a database and establish relationships between different pieces of information. They are essential for designing and managing databases effectively.

A person, organization, object type, or concept about which information is stored.