In the figure shown below, which attribute is a derived attribute in the Member table?

Question

BlackTom AI · Accepted Answer

Consider what a derived attribute means: an attribute whose value can be computed from other attributes in the same or related entities, rather than being stored directly.
Option 1: Address. This is a by-value attribute that typically stores the actual location of the member; it is not something you compute from other fields, so it is not derived.
Option 2: MemberID. This is usually a primary key or identifier assigned to the member, typically stored explicitly and not derived from other data. It is not a derived attribute.
Option 3: YearsMember. This represents how long someone has been a member, which can be calculated from the MemberJoinDate (or join date) and the current date. Since you can derive YearsMember from existing data, it is a derived attribute.
Option 4: FavoriteProducts. This is likely a list or collection of products the member likes or has chosen; it is stored or linked as data rather than computed from other fields, so it is not derived.
In summary, the only attribute that fits the definition of being derived (computed from other attributes) is YearsMember, while the others are stored attributes or identifiers that are not calculated from other data.

In the figure shown below, which attribute is a derived attribute in the Member table?

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