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Definition of "aggregation" |
If a class have an entity reference, it is known as Aggregation. Aggregation represents HAS-A relationship. Consider a situation, Employee object contains many informations such as id, name, emailId etc. It contains one more object named address, which contains its own informations such as city, state, country, zipcode etc. / an operation performed on system variables whose purpose is to collect them in a way enabling order and/or uncertainty reduction. |
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