Which command is used to refresh a materialized view?

• A. Restart Materialized View <view>
• B. Alter Materialized View <view> REFRESH=TRUE
• C. Materialized views are automatically refreshed by Snowflake
• D. Refresh Materialized View <view>

Answer: (C)

Materialized views in Snowflake are automatically refreshed by Snowflake. The system maintains these views so they stay up-to-date as the underlying base tables change, meaning you don’t need to issue a separate refresh command in normal operation. The other options reference commands or syntax that aren’t how Snowflake handles refresh.