Using the Entity Relationship Diagram you have drawn on your piece of paper for the Hamilton Island 'BoatRaceResults' Table, answer the following question.

Which is a Foreign Key of the BoatRaceResults table?

Question

Using the Entity Relationship Diagram you have drawn  on your piece of paper for the Hamilton Island 'BoatRaceResults' Table, answer the following question.

Which is a Foreign Key of the BoatRaceResults table?

BlackTom AI · Accepted Answer

To determine a foreign key in the BoatRaceResults table, I will review the given functional dependencies and the table structure.
Option 1: BoatClub. While the BoatClub column appears in the BoatRaceResults table, the functional dependencies show BoatName → BoatSaleNum, BoatClub, meaning BoatClub is an attribute of Boat, not a key in BoatRaceResults. This option misinterprets the relationship; BoatClub is not the key that links BoatRaceResults to another table.
Option 2: BoatName. BoatName is present in BoatRaceResults, and there is a dependency BoatName → BoatSaleNum, BoatClub implies BoatName identifies a boat, but BoatName alone in BoatRaceResults does not establish a link to a parent table with a primary key. It’s not the foreign key that references another table’s primary key.
Option 3: ClubSuburb. ClubSuburb is shown as an attribute of the BoatClub entity in the diagram, but in the given dependencies there is no direct link from BoatRaceResults to a separate ClubSuburb key in a parent table. It functions as descriptive data rather than a foreign key relationship.
Option 4: RaceId. RaceId aligns with the RaceID or Race class identifier used to connect each race entry to the RaceClass or Race table. In typical relational designs, a foreign key in BoatRaceResults would reference the primary key of a related Race table to tie each result to a specific race. The provided data and diagram indicate RaceId serves as the bridging key for the relationship between BoatRaceResults and the Race (or RaceClass) table, making it the foreign key in this context.
Therefore, among the options, RaceId best fits the role of a foreign key connecting BoatRaceResults to its related Race data. The other fields are either descriptive attributes or part of other relationships that do not represent a direct foreign key reference.

Using the Entity Relationship Diagram you have drawn on your piece of paper for the Hamilton Island 'BoatRaceResults' Table, answer the following question. Which is a Foreign Key of the BoatRaceResults table?

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