我正在尝试根据以下代码中显示的'Mathlogictable'中的'Yearmonth'和'Timedimensiondate'列将值重新转换为字符串....
我能够成功地完成它但现在我需要将字符串替换为数值逻辑表中没有的零值。
例如：如果您执行以下代码，我们可以找到第一行具有import-consumptionqty1（314）的值，但不能用于import consumtionQty（1539）..... like
YEARMONTH OUTPUTFORMULA TIMEDIMENSIONDATE
CV(N1) 2002: 10 236846.000 + Import - Consumption qty1(1539) 2002-10-01
我需要在公式列中将没有值的字符串替换为零......这样我的输出应该像
Yearmonth Formula TimeDimensionDate
CV(N1) 2002: 10 236846.000 + 0 2002-10-01
我怎样才能做到这一点？
请注意，我创建了一个名为#tablevaluedfunction的tem表，并将输出插入该表....并进行了连接.....
以下是我正在尝试的代码
Begin
CREATE TABLE #MathLogicTable
(
IDNUM INTEGER IDENTITY(1,1),
FORMULA Varchar(160),
INPUTName varchar(160),
AttributeValue Decimal(15,3),
yearmonth varchar(160),
TimeDimensionDate date
)
INSERT INTO #MathLogicTable (FORMULA,INPUTName,AttributeValue,yearmonth,TimeDimensionDate)
VALUES ('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(1539)',855,'CV(N1) 2002: 1','2002-01-01')
,('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(1539)',4860,'CV(N1) 2002: 2','2002-02-01')
,('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(1539)',21683,'CV(N1) 2002: 3','2002-03-01')
,('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(1539)',12800,'CV(N1) 2002: 4','2002-04-01')
,('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(1539)',802,'CV(N1) 2002: 5','2002-05-01')
,('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(314)',250616,' CV(N1) 2002: 6 ','2002-06-01')
,('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(314)',333064,' CV(N1) 2002: 7 ','2002-07-01')
,('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(314)',131397,' CV(N1) 2002: 8 ','2002-08-01')
,('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(314)',294510,' CV(N1) 2002: 9 ','2002-09-01')
,('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(314)',236846,' CV(N1) 2002: 10 ','2002-10-01')
,('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(314)',397183,' CV(N1) 2002: 11 ','2002-11-01')
,('Import - Consumption qty1(314) + Import - Consumption qty1(1539)','Import - Consumption qty1(314)',128616,' CV(N1) 2002: 12 ','2002-12-01')
;WITH cteSplitFormula AS (
SELECT
IDNUM
,TimeDimensionDate
,CAST(LTRIM(RTRIM(LEFT(FORMULA, PATINDEX('%[+\*/^]%',FORMULA+'+')-1))) AS VARCHAR(5000)) AS FormulaItem
,STUFF(FORMULA, 1, PATINDEX('%[+\*/^]%',FORMULA+'+'), '') as RemainingFromula
FROM
#MathLogicTable
UNION ALL
SELECT
IDNUM
,TimeDimensionDate
,CAST(LTRIM(RTRIM(LEFT(RemainingFromula, PATINDEX('%[+\*/^]%',RemainingFromula+'+')-1))) AS VARCHAR(5000)) AS FormulaItem
,STUFF(RemainingFromula, 1, PATINDEX('%[+\*/^]%',RemainingFromula+'+'), '') as RemainingFromula
FROM
cteSplitFormula
WHERE
LEN(RemainingFromula) > 0
)
, ctePartsValues AS (
SELECT
sf.IDNUM
,sf.TimeDimensionDate
,sf.FormulaItem AS FormulaItem
,ISNULL(m.AttributeValue,0) AS ReplacementValue
,ROW_NUMBER() OVER(PARTITION BY sf.IDNUM ORDER BY (SELECT 1)) AS [ReplacementOrderID]
FROM
cteSplitFormula sf
FULL OUTER JOIN #MathLogicTable m
ON sf.FormulaItem = LTRIM(RTRIM(m.INPUTName))
AND sf.TimeDimensionDate = m.TimeDimensionDate
)
, cteRecursiveDataSource AS (
SELECT
m.IDNUM
,REPLACE(m.Formula,pv.FormulaItem,pv.ReplacementValue) as Formula
,pv.ReplacementOrderID
FROM
#MathLogicTable m
INNER JOIN ctePartsValues pv
ON m.IDNUM = pv.IDNUM
AND pv.ReplacementOrderID = 1
UNION ALL
SELECT
rds.IDNUM
,REPLACE(rds.Formula,pv.FormulaItem,pv.ReplacementValue) as Formula
,pv.ReplacementOrderID
FROM
cteRecursiveDataSource rds
INNER JOIN ctePartsValues pv
ON rds.IDNUM = pv.IDNUM
AND rds.ReplacementOrderID + 1 = pv.ReplacementOrderID
)
, cteIdentifyRowWithLastReplacementStatement AS (
SELECT
*
,ROW_NUMBER() OVER (PARTITION BY IDNUM ORDER BY ReplacementOrderId DESC) as FinalRow
FROM
cteRecursiveDataSource
)
SELECT *
FROM
cteIdentifyRowWithLastReplacementStatement
WHERE
FinalRow = 1
DROP table #MathLogicTable
END
由于
答案 0 :(得分：1)
;WITH cteSplitFormula AS (
SELECT
IDNUM
,TimeDimensionDate
,CAST(LTRIM(RTRIM(LEFT(REPLACE(Formula,'Import -','ImportReplaced'), PATINDEX('%[+-\*/^]%',REPLACE(Formula,'Import -','ImportReplaced')+'+')-1))) AS VARCHAR(5000)) AS FormulaItem
,STUFF(REPLACE(Formula,'Import -','ImportReplaced'), 1, PATINDEX('%[+-\*/^]%',REPLACE(Formula,'Import -','ImportReplaced')+'+'), '') as RemainingFromula
FROM
#MathLogicTable
UNION ALL
SELECT
IDNUM
,TimeDimensionDate
,CAST(LTRIM(RTRIM(LEFT(RemainingFromula, PATINDEX('%[+-\*/^]%',RemainingFromula+'+')-1))) AS VARCHAR(5000)) AS FormulaItem
,STUFF(RemainingFromula, 1, PATINDEX('%[+-\*/^]%',RemainingFromula+'+'), '') as RemainingFromula
FROM
cteSplitFormula
WHERE
LEN(RemainingFromula) > 0
)
, ctePartsValues AS (
SELECT
sf.IDNUM
,sf.TimeDimensionDate
,REPLACE(sf.FormulaItem,'ImportReplaced','Import -') AS FormulaItem
,ISNULL(m.AttributeValue,0) AS ReplacementValue
,ROW_NUMBER() OVER(PARTITION BY sf.IDNUM ORDER BY (SELECT 1)) AS [ReplacementOrderID]
FROM
cteSplitFormula sf
FULL OUTER JOIN #MathLogicTable m
ON REPLACE(sf.FormulaItem,'ImportReplaced','Import -') = LTRIM(RTRIM(m.INPUTName))
AND sf.TimeDimensionDate = m.TimeDimensionDate
)
, cteRecursiveDataSource AS (
SELECT
m.IDNUM
,REPLACE(m.Formula,pv.FormulaItem,pv.ReplacementValue) as Formula
,pv.ReplacementOrderID
FROM
#MathLogicTable m
INNER JOIN ctePartsValues pv
ON m.IDNUM = pv.IDNUM
AND pv.ReplacementOrderID = 1
UNION ALL
SELECT
rds.IDNUM
,REPLACE(rds.Formula,pv.FormulaItem,pv.ReplacementValue) as Formula
,pv.ReplacementOrderID
FROM
cteRecursiveDataSource rds
INNER JOIN ctePartsValues pv
ON rds.IDNUM = pv.IDNUM
AND rds.ReplacementOrderID + 1 = pv.ReplacementOrderID
)
, cteIdentifyRowWithLastReplacementStatement AS (
SELECT
*
,ROW_NUMBER() OVER (PARTITION BY IDNUM ORDER BY ReplacementOrderId DESC) as FinalRow
FROM
cteRecursiveDataSource
)
SELECT *
FROM
cteIdentifyRowWithLastReplacementStatement
WHERE
FinalRow = 1