1.

Point out the wrong statement.(a) Query selectivity refers to how well the query predicate excludes or filters out documents in a collection(b) Query selectivity can determine whether or not queries can use indexes effectively or even use indexes at all(c) More selective queries match a larger percentage of documents(d) All of the mentioned

Answer» The correct option is (c) More selective queries match a larger percentage of documents

Explanation: More selective queries match a smaller percentage of documents.


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