How can we retrieve the latest state update for every customer?
Partitioning by customer_id and ordering by updated_at DESC isolates the latest entity revision.
Change Data Capture (CDC) state resolution, current profile lookup, SCD Type 1 staging.
SELECT *
FROM (
SELECT
*,
ROW_NUMBER() OVER (
PARTITION BY customer_id
ORDER BY updated_at DESC
) AS rn
FROM customer_updates
) latest
WHERE rn = 1;Practice typing production-grade SQL code for Latest Record.