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목록over() (1)
RE:cord
[SQL] Find the Nth group (DENSE_RANK / OVER / SUBQUERY)
-- Mainquery : SLECT shipment_id, total_weight FROM (subquery) subquery_name WHERE rank=3-- Subquery : SELECT shipment_id, a, b FROM amazon_shipment GROUP BY shipment_id SELECT shipment_id, total_weight, heavy_numFROM( SELECT shipment_id, SUM(weight) AS total_weight, DENSE_RANK() OVER (ORDER BY SUM(weight) DESC) AS heavy_num FROM amazon_shipment GROUP BY shipment_id) rank..
SQL
2024. 11. 24. 12:14