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Indices whose search key specifies an order different from the sequential order of the file are called ___________ indices.

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Indices whose search key specifies an order different from the sequential order of the file are called ___________ indices.

(a) Nonclustered

(b) Secondary

(c) All of the mentioned

(d) None of the mentioned

I have been asked this question in an interview for job.

Origin of the question is Ordered Indices topic in division Indexing and Hashing of Database Management

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Correct answer is (c) All of the mentioned

To explain: Nonclustering index is also called secondary indices.

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