[Solved] Why does keyset pagination generally perform better than offset pagination on large datasets? — Ans: Because it avoids scanning and counting skipped rows | Rest API

Rest API - Pagination Patterns

Why does keyset pagination generally perform better than offset pagination on large datasets?

ABecause it avoids scanning and counting skipped rows

BBecause it caches all pages in memory

CBecause it uses random access to jump pages

DBecause it preloads all data before querying

Step-by-Step Solution

Solution:

Step 1: Understand offset pagination cost
Offset pagination requires scanning and counting rows before the offset, which slows queries as offset grows.
Step 2: Identify keyset pagination advantage
Keyset pagination uses a cursor to directly fetch next rows without scanning skipped rows, improving speed.
Final Answer:
Because it avoids scanning and counting skipped rows -> Option A
Quick Check:
Performance gain reason = B [OK]

Quick Trick: Keyset skips scanning skipped rows, boosting speed [OK]

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Why does keyset pagination generally perform better than offset pagination on large datasets?