Sql server 2008 r2 SQLServer2008中针对动态列的算术运算符

我需要创建以下表格和结果：

-- tblPart PartCode[NVARCHAR(50)],UnitPrice[Decimal(18,2)]
SELECT * INTO #tblPart FROM(
SELECT 'A' PartCode, '10' UnitPrice
UNION All
SELECT 'B','11'
UNION All
SELECT 'C','38'
UNION All
SELECT 'D','20'
UNION All
SELECT 'E','12')part;

-- tblPartCondition ConditionCode[NVARCHAR(50)],PercentagePrice[Decimal(18,2)]
SELECT * INTO #tblPriceCondition FROM(
SELECT 'Weekly' ConditionCode, '3' PercentagePrice
UNION All
SELECT 'Urgent','-5'
UNION All
SELECT 'Hotline','-10'
UNION All
SELECT 'Normal','0')pricecondition


SELECT PartCode,
       [Weekly]=p.UnitPrice + (SELECT (CAST(c.PercentagePrice AS DECIMAL(18,2))/100) FROM #tblPriceCondition c WHERE c.ConditionCode='Weekly'),
       [Urgent]=p.UnitPrice + (SELECT (CAST(c.PercentagePrice AS DECIMAL(18,2))/100) FROM #tblPriceCondition c WHERE c.ConditionCode='Urgent'),
       [Hotline]=p.UnitPrice + (SELECT (CAST(c.PercentagePrice AS DECIMAL(18,2))/100) FROM #tblPriceCondition c WHERE c.ConditionCode='Hotline'),
       [Normal]=p.UnitPrice + (SELECT (CAST(c.PercentagePrice AS DECIMAL(18,2))/100) FROM #tblPriceCondition c WHERE c.ConditionCode='Normal')
FROM #tblPart p

DROP TABLE #tblPart
DROP TABLE #tblPriceCondition

PartCode    Weekly   Urgent   Hotline    Normal
........    ......   ......   .......    ......
   A         10.03     9.95     9.9        10
   B         11.03    10.95    10.9        11
   C         38.03    37.95    37.9        38
   D         20.03    19.95    19.9        20
   E         12.03    11.95    11.9        12

结果如下：

-- tblPart PartCode[NVARCHAR(50)],UnitPrice[Decimal(18,2)]
SELECT * INTO #tblPart FROM(
SELECT 'A' PartCode, '10' UnitPrice
UNION All
SELECT 'B','11'
UNION All
SELECT 'C','38'
UNION All
SELECT 'D','20'
UNION All
SELECT 'E','12')part;

-- tblPartCondition ConditionCode[NVARCHAR(50)],PercentagePrice[Decimal(18,2)]
SELECT * INTO #tblPriceCondition FROM(
SELECT 'Weekly' ConditionCode, '3' PercentagePrice
UNION All
SELECT 'Urgent','-5'
UNION All
SELECT 'Hotline','-10'
UNION All
SELECT 'Normal','0')pricecondition


SELECT PartCode,
       [Weekly]=p.UnitPrice + (SELECT (CAST(c.PercentagePrice AS DECIMAL(18,2))/100) FROM #tblPriceCondition c WHERE c.ConditionCode='Weekly'),
       [Urgent]=p.UnitPrice + (SELECT (CAST(c.PercentagePrice AS DECIMAL(18,2))/100) FROM #tblPriceCondition c WHERE c.ConditionCode='Urgent'),
       [Hotline]=p.UnitPrice + (SELECT (CAST(c.PercentagePrice AS DECIMAL(18,2))/100) FROM #tblPriceCondition c WHERE c.ConditionCode='Hotline'),
       [Normal]=p.UnitPrice + (SELECT (CAST(c.PercentagePrice AS DECIMAL(18,2))/100) FROM #tblPriceCondition c WHERE c.ConditionCode='Normal')
FROM #tblPart p

DROP TABLE #tblPart
DROP TABLE #tblPriceCondition

PartCode    Weekly   Urgent   Hotline    Normal
........    ......   ......   .......    ......
   A         10.03     9.95     9.9        10
   B         11.03    10.95    10.9        11
   C         38.03    37.95    37.9        38
   D         20.03    19.95    19.9        20
   E         12.03    11.95    11.9        12

上述查询基于#tblPartCondition，Pls中的已知列。你知道专栏是未知的吗？（例如，如果用户添加新的PercentageCode，PercentagePrice）。 我很感激你珍惜时间和分享。谢谢

获取pivot的列

DECLARE @cols NVARCHAR (MAX)

SELECT @cols = COALESCE (@cols + ',[' + ConditionCode + ']', '[' + ConditionCode + ']')
               FROM (SELECT DISTINCT ConditionCode FROM #tblPriceCondition) PV 
               ORDER BY ConditionCode

使用

CROSS-JOIN

获取每个

PartCode

DECLARE @query NVARCHAR(MAX)
SET @query = 'SELECT PartCode,' + @cols + ' FROM 
             (                 
                 SELECT PARTCODE,ConditionCode,
                 CAST(UnitPrice + CAST(PercentagePrice AS DECIMAL(18,2))/100 AS DECIMAL(18,2))  VALUE
                 FROM #tblPart
                 CROSS JOIN #tblPriceCondition
             ) x
             PIVOT 
             (
                 MIN(VALUE)
                 FOR ConditionCode IN (' + @cols + ')
            ) p
            ' 

EXEC SP_EXECUTESQL @query 

• 查看结果

请回答如何处理负值

---

将更新。

在这种情况下，人们通常建议根据

tblpricecodition

表中的实际值动态构建

PIVOT

查询。谢谢@Vladimir Baranov，但是我不知道PIVOT查询，您能提供一些代码吗？这应该给你一个很好的起点——结果必须包含负值。价格条件的公式为单价+（百分价格/100）。百分比价格可能是-10，5，…我真的很感谢你的帮助。这真的很有帮助。非常感谢。如果我想为partcode添加可选参数：“其中partcode=（add）partcode或（add）partcode为NULL”，则在“交叉连接#tblPriceCondition”下返回0值。有什么想法吗？对不起，回复太晚了。我太忙了。只需给出其中PARTCODE='''+@PARTCODE+''或其中PARTCODE在p之后和关闭动态sql之前为NULL@Sokeatried，但如果我传递值PartCode=NULL，仍然返回0值，我的逻辑是，如果将NULL值传递给PartCode，它将返回所有PartCode数据。