A. WITH daily_avg AS (
SELECT
DATE_TRUNC( ' DAY ' , window.end) AS day,
AVG(percent_null) AS avg_null
FROM prod_catalog.prod_schema.customer_data_profile_metrics
GROUP BY DATE_TRUNC( ' DAY ' , window.end)
)
SELECT day, avg_null
FROM daily_avg
ORDER BY day DESC
LIMIT 3
Alert Condition: ALL avg_null > 5 for the latest 3 rows
Notification Frequency: Just once

B. SELECT percent_null
FROM prod_catalog.prod_schema.customer_data_profile_metrics
WHERE window.end > = CURRENT_TIMESTAMP - INTERVAL ' 1 ' DAY
Alert Condition: percent_null > 5
Notification Frequency: At most every 24 hours

C. SELECT AVG(percent_null) AS daily_avg
FROM prod_catalog.prod_schema.customer_data_profile_metrics
WHERE window.end > = CURRENT_TIMESTAMP - INTERVAL ' 3 ' DAY
Alert Condition: daily_avg > 5
Notification Frequency: Each time alert is evaluated

D. SELECT SUM(CASE WHEN percent_null > 5 THEN 1 ELSE 0 END) AS violation_days FROM prod_catalog.prod_schema.customer_data_profile_metrics WHERE window.end > = CURRENT_TIMESTAMP - INTERVAL ' 3 ' DAY Alert Condition: violation_days > = 3 Notification Frequency: Just once