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04 April, 2022

Aggregation

 Programing Coderfunda     April 04, 2022     No comments   

Aggregation

In aggregation, the relation between two entities is treated as a single entity. In aggregation, the higher-level relationship with its corresponding entities is aggregated into a higher-level entity.

For example, the Center entity offers the Course entity to act as a single entity in the relationship which is in relationship with another entity visitor. In the real world, if a visitor visits a coaching center then he will never inquire about the Course only or just about the Center instead he will ask inquiry about both.


DBMS Aggregation

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