MCQOPTIONS
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| 1. |
Which of the following statements is FALSE about weak entity set ? |
| A. | Weak entities can be deleted. automatically when their strong entity is deleted |
| B. | Weak entity set avoids the data duplication and consequent possible inconsistencies caused by duplicating.the key of the strong entity |
| C. | A weak entity set has no primary keys unless attributes of the strong entity set on which it depends are included |
| D. | Tuples in a weak entity set are not partitioned according to their relationship with tuples in a strong entity set |
| Answer» E. | |