Which of the following is TRUE?
2018
Which of the following is TRUE?
- A.
A relation (table) may have more than one foreign keys
- B.
Primary key is not a candidate key
- C.
Every candidate key is a primary key
- D.
Candidate key is maximal set of attributes whose values are unique
Attempted by 343 students.
Show answer & explanation
Correct answer: A
A table can have multiple foreign keys referencing different tables, making Option A true. The primary key is a specific candidate key chosen from minimal unique sets.