Which of the following is TRUE?

2018

Answer: A. A relation (table) may have more than one foreign keys — 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…

1. A.

   A relation (table) may have more than one foreign keys

2. B.

   Primary key is not a candidate key

3. C.

   Every candidate key is a primary key

4. D.

   Candidate key is maximal set of attributes whose values are unique

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