[Solved] When should you prefer a materialized view over a regular view in PostgreSQL? — Ans: When query performance is critical and data changes infrequently. | PostgreSQL

PostgreSQL - Views and Materialized Views

When should you prefer a materialized view over a regular view in PostgreSQL?

AWhen you need real-time data always up to date.

BWhen you want to avoid storing any data on disk.

CWhen query performance is critical and data changes infrequently.

DWhen you want to avoid refreshing data manually.

Step-by-Step Solution

Solution:

Step 1: Consider data freshness needs
Regular views always show current data, materialized views may be stale until refreshed.
Step 2: Consider performance needs
Materialized views improve performance by storing results, best when data changes rarely.
Final Answer:
When query performance is critical and data changes infrequently. -> Option C
Quick Check:
Use case for materialized view = C [OK]

Quick Trick: Use materialized views for fast queries on rarely changing data [OK]

Common Mistakes:

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When should you prefer a materialized view over a regular view in PostgreSQL?