Question

A weak entity type always has a total participation constraint (existence dependency) with respect to its identifying relationship_______.

• A. Because it can be identified without its owner entity
• B. Because it cannot be identified without its owner entity
• C. Because it cannot be identified with us owner entity
• D. None of the Above

Answer 1

Answer: (B)

Because it cannot be identified without its owner entity

A voucher may be accompanied by a set of support documents, such as bills, issued by other parties to the transaction, details of which need to be stored. Such support document entity type which is used to keep track of support document attached to each voucher via, 1:n relationship, is a weak entity.