What type of diagram helps in showing the relationships between the entities in a database?

Entity Relationship Diagrams (ERDs) are specifically designed to illustrate the relationships between entities within a database. In an ERD, entities represent objects or concepts—such as customers, orders, or products—while relationships demonstrate how these entities interact with one another. Each entity is depicted as a rectangle, while relationships are usually represented by diamonds or lines connecting the entities.

By utilizing ERDs, developers and database administrators can visualize the organization of data, which aids in database design and ensuring data integrity. This visual representation helps in understanding how different data points correlate, making it essential for planning and implementing a structured database system.

Other types of diagrams, such as flowcharts, are aimed at representing processes and workflows rather than the relationships between data entities. Class diagrams focus on the structure of a system by describing its classes, attributes, and methods, which is more relevant to object-oriented programming than to database design. Use case diagrams, on the other hand, illustrate how users interact with a system to achieve specific goals, emphasizing user functionality rather than data relationships.