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What are materialized views, and when do you use them vs regular views?

Materialized views trade storage and freshness for query speed by precomputing results. The signal is knowing the view-vs-materialized-view tradeoff and the refresh/staleness question.

Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.

Materialized views trade storage and freshness for query speed by precomputing results. The signal is knowing the view-vs-materialized-view tradeoff and the refresh/staleness question.

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