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Which schema-level objects allow the user to periodically perform an action under specific conditions, based on data within Snowflake?
Correct Answer: A
* Alerts in Snowflake are schema-level objects that allow users to define conditions and actions to be performed automatically when those conditions are met. * Alerts use a schedule to periodically evaluate a query result and take action if the condition evaluates to TRUE. Example: CREATE ALERT my_alert IF (SELECT COUNT(*) FROM my_table WHERE status = 'ERROR') > 0 SCHEDULE = '5 MINUTE' ACTION = CALL notify_error_procedure(); Why Other Options Are Incorrect: * B. External tables: Used to query external data but cannot trigger actions. * C. Secure views: Ensure data privacy but do not perform actions. * D. Materialized views: Improve performance by precomputing query results but do not perform periodic actions. References: * Snowflake Alerts Documentation