How to Use QUALIFY in Snowflake
Last updated July 24, 2026 · By the SaturnSQL team
QUALIFY filters on window function results the way HAVING filters on aggregates, so you can deduplicate or take top-N per group without a subquery.
Latest row per customer
SELECT *
FROM orders
QUALIFY ROW_NUMBER() OVER (
PARTITION BY customer_id ORDER BY created_at DESC
) = 1;The equivalent in databases without QUALIFY is a subquery or CTE that computes ROW_NUMBER() and filters in the outer query.
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