GTS 表
CCP months QUART YEARS GTS
---- ------ ----- ----- ---
CCP1 1 1 2015 5
CCP1 2 1 2015 6
CCP1 3 1 2015 7
CCP1 4 2 2015 4
CCP1 5 2 2015 2
CCP1 6 2 2015 2
CCP1 7 3 2015 3
CCP1 8 3 2015 2
CCP1 9 3 2015 1
CCP1 10 4 2015 2
CCP1 11 4 2015 3
CCP1 12 4 2015 4
CCP1 1 1 2016 8
CCP1 2 1 2016 1
CCP1 3 1 2016 3
基线表
CCP BASELINE YEARS QUART
---- -------- ----- -----
CCP1 5 2015 1
预期结果
CCP months QUART YEARS GTS result
---- ------ ----- ----- --- ------
CCP1 1 1 2015 5 25 -- 5 * 5 (here 5 is the baseline)
CCP1 2 1 2015 6 30 -- 6 * 5 (here 5 is the baseline)
CCP1 3 1 2015 7 35 -- 7 * 5 (here 5 is the baseline)
CCP1 4 2 2015 4 360 -- 90 * 4(25+30+35 = 90 is the basline)
CCP1 5 2 2015 2 180 -- 90 * 2(25+30+35 = 90 is the basline)
CCP1 6 2 2015 2 180 -- 90 * 2(25+30+35 = 90 is the basline)
CCP1 7 3 2015 3 2160.00 -- 720.00 * 3(360+180+180 = 720)
CCP1 8 3 2015 2 1440.00 -- 720.00 * 2(360+180+180 = 720)
CCP1 9 3 2015 1 720.00 -- 720.00 * 1(360+180+180 = 720)
CCP1 10 4 2015 2 8640.00 -- 4320.00
CCP1 11 4 2015 3 12960.00 -- 4320.00
CCP1 12 4 2015 4 17280.00 -- 4320.00
CCP1 1 1 2016 8 311040.00 -- 38880.00
CCP1 2 1 2016 1 77760.00 -- 38880.00
CCP1 3 1 2016 3 116640.00 -- 38880.00
移植
基线表对于每个 CCP 都有单个基线值。
基准值应适用于每个 CCP 的第一季度，对于下一个季度，上一季度的总和值将作为基准值。
这是 Sql Server 2008 中的有效查询
;WITH CTE AS
( SELECT b.CCP,
Baseline = CAST(b.Baseline AS DECIMAL(15,2)),
b.Years,
b.Quart,
g.Months,
g.GTS,
Result = CAST(b.Baseline * g.GTS AS DECIMAL(15,2)),
NextBaseline = SUM(CAST(b.Baseline * g.GTS AS DECIMAL(15, 2))) OVER(PARTITION BY g.CCP, g.years, g.quart),
RowNumber = ROW_NUMBER() OVER(PARTITION BY g.CCP, g.years, g.quart ORDER BY g.Months)
FROM #GTS AS g
INNER JOIN #Base AS b
ON B.CCP = g.CCP
AND b.QUART = g.QUART
AND b.YEARS = g.YEARS
UNION ALL
SELECT b.CCP,
CAST(b.NextBaseline AS DECIMAL(15, 2)),
b.Years,
b.Quart + 1,
g.Months,
g.GTS,
Result = CAST(b.NextBaseline * g.GTS AS DECIMAL(15,2)),
NextBaseline = SUM(CAST(b.NextBaseline * g.GTS AS DECIMAL(15, 2))) OVER(PARTITION BY g.CCP, g.years, g.quart),
RowNumber = ROW_NUMBER() OVER(PARTITION BY g.CCP, g.years, g.quart ORDER BY g.Months)
FROM #GTS AS g
INNER JOIN CTE AS b
ON B.CCP = g.CCP
AND b.Quart + 1 = g.QUART
AND b.YEARS = g.YEARS
AND b.RowNumber = 1
)
SELECT CCP, Months, Quart, Years, GTS, Result, Baseline
FROM CTE;
更新:
工作一年以上
;WITH order_cte
AS (SELECT Dense_rank() OVER(partition BY ccp ORDER BY years, quart) d_rn,*
FROM #gts),
CTE
AS (SELECT b.CCP,
Baseline = Cast(b.Baseline AS DECIMAL(15, 2)),
g.Years,
g.Quart,
g.Months,
g.GTS,
d_rn,
Result = Cast(b.Baseline * g.GTS AS DECIMAL(15, 2)),
NextBaseline = Sum(Cast(b.Baseline * g.GTS AS DECIMAL(15, 2)))
OVER(
PARTITION BY g.CCP, g.years, g.quart),
RowNumber = Row_number()
OVER(
PARTITION BY g.CCP, g.years, g.quart
ORDER BY g.Months)
FROM order_cte AS g
INNER JOIN #Baseline AS b
ON B.CCP = g.CCP
AND b.QUART = g.QUART
AND b.YEARS = g.YEARS
UNION ALL
SELECT b.CCP,
Cast(b.NextBaseline AS DECIMAL(15, 2)),
g.Years,
g.Quart,
g.Months,
g.GTS,
g.d_rn,
Result = Cast(b.NextBaseline * g.GTS AS DECIMAL(15, 2)),
NextBaseline = Sum(Cast(b.NextBaseline * g.GTS AS DECIMAL(15, 2)))
OVER(
PARTITION BY g.CCP, g.years, g.quart),
RowNumber = Row_number()
OVER(
PARTITION BY g.CCP, g.years, g.quart
ORDER BY g.Months)
FROM order_cte AS g
INNER JOIN CTE AS b
ON B.CCP = g.CCP
AND b.d_rn + 1 = g.d_rn
AND b.RowNumber = 1)
SELECT CCP,
Months,
Quart,
Years,
GTS,
Result,
Baseline
FROM CTE;
现在正在寻找 Sql Server 2012+ 中的解决方案，它将利用 SUM OVER(ORDER BY) 功能或任何更好的方式
尝试过类似的事情
EXP(SUM(LOG(Baseline * GTS)) OVER (PARTITION BY CCP ORDER BY Years,Quart ROWS UNBOUNDED PRECEDING))
但是没有锻炼
最佳答案
以下解决方案假设每季度始终有 3 行(只有最后一个季度可能是部分的)，单个 SELECT，无递归:-)
WITH sumQuart AS
(
SELECT *,
CASE
WHEN ROW_NUMBER() -- for the 1st month in a quarter
OVER (PARTITION BY CCP, Years, Quart
ORDER BY months) = 1
-- return the sum of all GTS of this quarter
THEN SUM(GTS) OVER (PARTITION BY CCP, Years, Quart)
ELSE NULL -- other months
END AS sumGTS
FROM gts
)
,cte AS
(
SELECT
sq.*,
COALESCE(b.Baseline, -- 1st quarter
-- product of all previous quarters
CASE
WHEN MIN(ABS(sumGTS)) -- any zeros?
OVER (PARTITION BY sq.CCP ORDER BY sq.Years, sq.Quart, sq.Months
ROWS BETWEEN UNBOUNDED PRECEDING AND 3 PRECEDING) = 0
THEN 0
ELSE -- product
EXP(SUM(LOG(NULLIF(ABS(COALESCE(b.Baseline,1) * sumGTS),0)))
OVER (PARTITION BY sq.CCP ORDER BY sq.Years, sq.Quart, sq.Months
ROWS BETWEEN UNBOUNDED PRECEDING AND 3 PRECEDING)) -- product
-- odd number of negative values -> negative result
* CASE WHEN COUNT(CASE WHEN sumGTS < 0 THEN 1 END)
OVER (PARTITION BY sq.CCP ORDER BY sq.Years, sq.Quart, sq.Months
ROWS BETWEEN UNBOUNDED PRECEDING AND 3 PRECEDING) % 2 = 0 THEN 1 ELSE -1 END
END) AS newBaseline
FROM sumQuart AS sq
LEFT JOIN BASELINE AS b
ON B.CCP = sq.CCP
AND b.Quart = sq.Quart
AND b.Years = sq.Years
)
SELECT
CCP, months, Quart, Years, GTS,
round(newBaseline * GTS,2),
round(newBaseline,2)
FROM cte
参见Fiddle
编辑: 添加了处理值 <= 0 Fiddle 的逻辑
关于sql - 在 T-SQL 中运行乘法，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32787506/