Discussion
A dynamic view is one whose contents materialize when referenced.
Answer: A
Correct answer: True
A dynamic view stores only its defining query. Its contents are computed each time it is referenced, so it always reflects the current state of the underlying tables - which is what "materialize when referenced" describes.
The contrast is with a materialized view, which stores the result physically and must be refreshed to stay current. The trade is the familiar one: the dynamic view is always accurate but pays the query cost on every access, while the materialized view is fast to read and may be stale.
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