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In a _______ clustering index, the index record contains the search-key value and a pointer to the first data record with that search-key value and the rest of the records will be in the sequential pointers.

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In a _______ clustering index, the index record contains the search-key value and a pointer to the first data record with that search-key value and the rest of the records will be in the sequential pointers.

(a) Dense

(b) Sparse

(c) Straight

(d) Continuous

This question was addressed to me in an online quiz.

Query is from Ordered Indices in chapter Indexing and Hashing of Database Management

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The correct answer is (a) Dense

Easiest explanation - In a dense nonclustering index, the index must store a list of pointers to all records with the same search-key value.

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