What is a key difference between a view and a materialized view?

Problem Statement

Explanation

A materialized view trades storage and refresh work for faster reads, which helps heavy, repeated analytics. A plain view is only a saved query definition. Choose refresh timing based on freshness needs. Some engines support fast refresh with logs; others only full refresh.

Code Solution

SolutionRead Only

-- Postgres
CREATE MATERIALIZED VIEW mv_sales AS
SELECT date_trunc('day', created_at) d, SUM(total) s
FROM orders GROUP BY 1;

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Query Optimization & Execution Plans

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What is a key difference between a view and a materialized view?

Problem Statement

Explanation

Code Solution

Practice Sets

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Master Interviews Anywhere, Anytime

What is a key difference between a view and a materialized view?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Which SQL statement retrieves all columns and rows from a table named employees?

Which clause filters rows before aggregation and affects which rows are grouped?

What is the default sort order when ORDER BY is used without ASC or DESC?

Which construct is commonly used to paginate results in SQL engines like Postgres and MySQL?

Which predicate correctly checks for missing values in standard SQL?

More from SQL & Databases

Master Interviews
Anywhere, Anytime