IBM
C2090-558 · Question #9
Which of the following statements can be used to prevent duplicate values in an indexed column?
The correct answer is B. CREATE UNIQUE INDEX. See the full explanation below for the reasoning.
Question
Which of the following statements can be used to prevent duplicate values in an indexed column?
Options
- ACREATE HASH INDEX
- BCREATE UNIQUE INDEX
- CCREATE DISTINCT TYPE
- DCREATE CLUSTER INDEX
How the community answered
(58 responses)- A3% (2)
- B84% (49)
- C2% (1)
- D10% (6)
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