In an RDBMS, which of the following statements regarding database keys is false?
2026
In an RDBMS, which of the following statements regarding database keys is false?
- A.
A table can have multiple Candidate Keys.
- B.
A table can have multiple Primary Keys.
- C.
A table can have multiple Alternate Keys.
- D.
A table can have multiple Foreign Keys.
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Correct answer: B
In an RDBMS, a table can have only one Primary Key, which uniquely identifies each record.
However, it can have multiple Candidate Keys, Alternate Keys, and Foreign Keys.
So the statement “A table can have multiple Primary Keys” is false.