How does the utilization of Regular views differ from Materialized views in data analysis?

Question

Options

• AMaterialized views provide a persisted snapshot, unlike Regular views.
• BMaterialized views offer limited data accessibility compared to Regular views.
• CRegular views are exclusively used for exploratory analyses.
• DRegular views offer better query performance compared to Materialized views.

• A
  88% (60)
• B
  4% (3)
• C
  1% (1)
• D
  6% (4)

Explanation

Option A is correct because a materialized view physically stores the query result as a snapshot on disk, meaning it persists between queries and can be refreshed on a schedule, while a regular view is simply a saved SQL query that executes dynamically each time it's called - producing no stored data of its own.

Why the distractors are wrong:

• B is backwards - materialized views actually increase data accessibility by pre-computing results, making them faster and available even when underlying sources are slow or unavailable.
• C is incorrect because regular views have no such restriction; they're used across all types of analyses, not just exploratory ones.
• D is the opposite of reality - materialized views generally outperform regular views on complex queries because the work is done upfront, whereas regular views re-execute the full query on every access.

Memory tip: Think of a regular view as a recipe (instructions run fresh each time) and a materialized view as a pre-cooked meal (result stored and ready to serve) - the "material" in materialized means the data has physical substance on disk.

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