What is a database materialized view?

materialized view is a database object that stores the results of a query physically, unlike

regular view, which computes its result dynamically.

• Advantages:
• Faster query response times as the results are precomputed and stored.
• Can be refreshed periodically (e.g., every hour or after specific events) to

keep the data up to date.

• Use cases: Reporting, data warehousing, and aggregation-heavy applications.
• Example:
• A materialized view could aggregate sales data by day, allowing a query to

retrieve the precomputed values instead of performing costly aggregation on

the fly.