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Why are weak entities represented in an ERD? The appearance of a weak entity indicates that a referential integrity constraint to enforce cascading deletions should
Why are weak entities represented in an ERD?
The appearance of a weak entity indicates that a referential integrity constraint to enforce cascading deletions should be implemented between the strong parent and weak child
If the weak entity is IDdependent then this points out that the primary key of the strong parent is part of the composite primary key of the child also
Both A and B
None of the above
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