Question: Which statement best describes a sparse index in a database? Which statement best describes a sparse index in a database? A sparse index contains entries

Which statement best describes a sparse index in a database?
Which statement best describes a sparse index in a database?
A sparse index contains entries for every record in the database table.
A sparse index ensures that records are stored contiguously on disk for faster retrieval.
A sparse index is used exclusively for primary key columns in a table.
A sparse index is characterized by having a small number of index entries relative to the number of records in the table.

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