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LAMP MCQs

Which of the following are correct with regard to indexes in MySql?

With clustered indexes, the primary key and the record itself are "clustered" together

When your data is almost always searched through via its primary key, clustered indexes can make lookups drastically slow

With separate indexes on first_name and last_name, MySQL can eliminate rows based on both fields

Indexes are not always used to locate matching rows for a query

Answer

Correct Answer: With clustered indexes, the primary key and the record itself are "clustered" together

Explanation:

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