If a weak entity is ID-dependent but not existence-dependent,it can be represented using the same techniques as a strong entity.

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Quizplus · Accepted Answer

A weak entity is ID-dependent, meaning that it requires the identifier of its owner entity to exist. However, it is also existence-dependent, meaning that it cannot exist without its owner entity. Therefore, it cannot be represented using the same techniques as a strong entity which can exist independently. It requires a different approach, such as using partial keys or an identifying relationship.

If a Weak Entity Is ID-Dependent but Not Existence-Dependent,it Can