What characterizes an independent entity?

What characterizes an independent entity?

• A. Contains attributes from multiple entities
• B. Primary key includes only its own attributes
• C. Does not have any dependencies
• D. Requires foreign keys to define

Answer: (B)

An independent entity is primarily characterized by its primary key containing only its own attributes. This indicates that the independent entity is self-sufficient and does not rely on attributes from other entities for its unique identification. It stands apart as a distinct object within the database schema and is not dependent on the presence of any other entity to achieve its definition or functionality. In a database context, such an entity can exist and function independently, which typically means that all the information necessary to describe it is contained within that entity alone. This independence allows for greater flexibility when designing the database model, as developers can create, update, or delete independent entities without affecting other parts of the database. This understanding can help illustrate the nature of the database's relational structure, where independent entities contribute to the overall integrity and efficiency of data management without being unnecessarily intertwined.

An independent entity is primarily characterized by its primary key containing only its own attributes. This indicates that the independent entity is self-sufficient and does not rely on attributes from other entities for its unique identification. It stands apart as a distinct object within the database schema and is not dependent on the presence of any other entity to achieve its definition or functionality.

In a database context, such an entity can exist and function independently, which typically means that all the information necessary to describe it is contained within that entity alone. This independence allows for greater flexibility when designing the database model, as developers can create, update, or delete independent entities without affecting other parts of the database.

This understanding can help illustrate the nature of the database's relational structure, where independent entities contribute to the overall integrity and efficiency of data management without being unnecessarily intertwined.