________ is a set of one or more attribute(s) taken collectively to uniquely identify a record.
Asked In: BPSC TRE 3.0Options
- A. Primary key
- B. Foreign key
- C. Superkey
- D. More than one of the above
- E. None of the above
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Quiz Practice:
Correct Answer (Detailed Explanation is Below)
C. Superkey
Detailed Explanation
- Superkey: A set of one or more attributes that uniquely identifies each record in a table.
- A superkey may contain additional unnecessary attributes.
- Example: Student_ID alone or Student_ID combined with Student_Name can be a superkey if Student_ID is unique.