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我需要在三個不同的組(30%,30%和40%)中劃分查詢結果。如果我使用NTILE(3)函數,結果被分成三個相等的組(33%,33%,33%)。 我該怎麼辦?TSQL:除以百分比結果
這是我的查詢的模式:
;WITH TMP1 AS (
SELECT
Column0,
ISNULL(SUM(Column1),0) AS Val
FROM MyTable
GROUP BY Column0
),
TMP2 AS (
SELECT NTILE (3) OVER (ORDER BY Column0 DESC) AS MyGroup, Val
FROM TMP1
)
SELECT MyGroup, ISNULL(SUM(Val),0) as Val
FROM TMP2
GROUP BY MyGroup
ORDER BY MyGroup
非常感謝您
使用NTILE(10) (1,2,3)30%,(4,5,6)30%,(7,8,9,10)40% – Horaciux