Multiple choice technology databases

What best describes the relationship between indexes and SQL performance?

  1. Indexes are only used in special cases

  2. Indexes are used to make table storage more efficient

  3. Indexes rarely make a difference in SQL performance

  4. Indexes exist solely to improve query speed
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Database indexes are separate data structures designed specifically to speed up data retrieval operations, making query execution faster at the cost of additional storage and write overhead.

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