What distinguishes a clustered index from a sparse index, and how does one go about creating a clustered index?

Oracle 12c: SQL
3rd Edition
ISBN:9781305251038
Author:Joan Casteel
Publisher:Joan Casteel
Chapter6: Additional Database Objects
Section: Chapter Questions
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What distinguishes a clustered index from a sparse index, and how does one go about creating a clustered index?

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Database management systems can employ clustered indexes and sparse indexes as two index types to enhance query performance. Although they have certain commonalities, they also stand out in a way that makes them suitable for various use cases.

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