Multiple choice

The sparse index means

  1. to avoid overflow

  2. an index entry is not created for every value

  3. the entry contains the search key and a pointer in the first data record with that search key value

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In this, index entry is not created for every value. Each index entry contains a search-key and a pointer to the first record with that search-key value.

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