使用 select 语句作为存储过程的输入。 T-SQL

Question

我有以下问题；

我目前有一个存储过程，当我输入 4 个不同的参数时会进行大量计算，然后使用 select 语句输出结果（11 列），如下所示：

此查询的开头如下所示：

    ALTER PROCEDURE [AGG].[usp_CalculateIsentropeEfficiency] 
(
    @InlaatdrukE INT,
    @InlaattempC INT,
    @UitlaatdrukE INT,
    @UitlaattempC INT
)
AS



/*-------------------------- Omrekenen van druk naar absolute druk en temperatuur naar de eenheid Kelvin. --------------------------*/
DECLARE @InlaatdrukA DECIMAL(20,15)
DECLARE @InlaattempK DECIMAL(20,15)
DECLARE @UitlaatdrukA DECIMAL(20,15)
DECLARE @UitlaattempK DECIMAL(20,15)

SET @InlaatdrukA = @InlaatdrukE + 1.01325
SET @InlaattempK = @InlaattempC + 273.15
SET @uitlaatdrukA = @UitlaatdrukE + 1.01325
SET @UitlaattempK = @UitlaattempC + 273.15

在这部分之后，我声明并设置了更多变量。有些在查找表中查找值，有些只是简单的计算。

现在的想法是，这些不同的参数应该根据我使用枢轴执行的另一个选择语句来填充。

这个数据透视表的输出如下所示：

其中PI,PU,TI 和TU 是存储过程的输入。

我的问题是我不能为每一行运行存储过程，所以我想把 Pivot Select 放在存储过程中以创建一个更大的表。这也不起作用，因为我不能使用数据透视表作为我进行计算的变量的输入。

所需的输出需要是数据透视表 + 计算。像这样：

TimeKey Component PI PU TI TU Q Row# InlaatdrukA InlaattempK Tuit_s等

我希望你们中的任何人都知道如何做到最好，因为我相信存储过程可能不是最佳选择。

感谢您分享您的专业知识。

正如 cmets 所问的，这里有更多带有逻辑的 SQL 代码： 在程序中：

--Inlaat
DECLARE @Lookup_inlaat_templower INT
DECLARE @Lookup_inlaat_druklower INT
DECLARE @Lookup_inlaat_temphigher INT
DECLARE @Lookup_inlaat_drukhigher INT

SET @Lookup_inlaat_templower = (SELECT MAX(ref.Temperature) FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Temperature <= @InlaattempK)
SET @Lookup_inlaat_druklower = (SELECT MAX(ref.Pressure) FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Pressure <= @InlaatdrukA)
SET @Lookup_inlaat_temphigher = (SELECT MIN(ref.Temperature) FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Temperature >= @InlaattempK)
SET @Lookup_inlaat_drukhigher = (SELECT MIN(ref.Pressure) FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Pressure >= @InlaatdrukA)

--Uitlaat
DECLARE @Lookup_uitlaat_templower INT
DECLARE @Lookup_uitlaat_druklower INT
DECLARE @Lookup_uitlaat_temphigher INT
DECLARE @Lookup_uitlaat_drukhigher INT

SET @Lookup_uitlaat_templower = (SELECT MAX(ref.Temperature) FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Temperature <= @uitlaattempK)
SET @Lookup_uitlaat_druklower = (SELECT MAX(ref.Pressure) FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Pressure <= @uitlaatdrukA)
SET @Lookup_uitlaat_temphigher = (SELECT MIN(ref.Temperature) FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Temperature >= @uitlaattempK)
SET @Lookup_uitlaat_drukhigher = (SELECT MIN(ref.Pressure) FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Pressure >= @uitlaatdrukA)

/*-------------------------- Interpolatie van de gemeten inlaat temperatuur en druk. --------------------------*/
DECLARE @Isentrope_inlaat_lowertemp_lowerdruk DECIMAL(19,17)
DECLARE @Isentrope_inlaat_lowertemp_higherdruk DECIMAL(19,17)
DECLARE @Isentrope_inlaat_highertemp_lowerdruk DECIMAL(19,17)
DECLARE @Isentrope_inlaat_highertemp_higherdruk DECIMAL(19,17)

SET @Isentrope_inlaat_lowertemp_lowerdruk = (SELECT ref.IsentropeCoefficient FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Temperature = @lookup_inlaat_templower AND ref.Pressure = @lookup_inlaat_druklower)
SET @Isentrope_inlaat_lowertemp_higherdruk = (SELECT ref.IsentropeCoefficient FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Temperature = @lookup_inlaat_templower AND ref.Pressure = @lookup_inlaat_drukhigher)
SET @Isentrope_inlaat_highertemp_lowerdruk = (SELECT ref.IsentropeCoefficient FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Temperature = @lookup_inlaat_temphigher AND ref.Pressure = @lookup_inlaat_druklower)
SET @Isentrope_inlaat_highertemp_higherdruk = (SELECT ref.IsentropeCoefficient FROM AGG.tblRefIsentropeEfficiency ref WHERE ref.Temperature = @lookup_inlaat_temphigher AND ref.Pressure = @lookup_inlaat_drukhigher)

DECLARE @IsentropeInlaatG1 DECIMAL(19,17)
DECLARE @IsentropeInlaatG2 DECIMAL(19,17)

SET @IsentropeInlaatG1 = ((@lookup_inlaat_druklower + @Deltax - @InlaatdrukA) * @Isentrope_inlaat_lowertemp_lowerdruk + (@InlaatdrukA - @lookup_inlaat_druklower) * @isentrope_inlaat_lowertemp_higherdruk) / @deltax
SET @IsentropeInlaatG2 = ((@lookup_inlaat_druklower + @Deltax - @InlaatdrukA) * @Isentrope_inlaat_highertemp_lowerdruk + (@InlaatdrukA - @lookup_inlaat_druklower) * @isentrope_inlaat_highertemp_higherdruk) / @deltax

这只是设置变量并使用它们进行计算。 （这仍然不是一切，但应该更深入地了解我如何计算字段。存储过程 atm 的结尾只是：

SELECT  InlaatdrukA = @InlaatdrukA, 
        InlaattempK = @InlaattempK, 
        UitlaatdrukA = @UitlaatdrukA, 
        UitlaattempK = @UitlaattempK,
        Interpolate_BL = @InlaatInterpolate_BL,
        Tuit_s = @Tuit_s,
        H1_Interpolate_BL = @H1_Interpolate_BL,
        H2_Interpolate_BL = @H2_Interpolate_BL,
        H2s_Interpolate_BL = @H2s_Interpolate_BL,
        IsentropeEfficiency = @IsentropeEfficiency,
        IsentropeInefficiency = @IsentropeInefficiency

整个 Pivot SQL 查询是这样的：

with  cte_src as (    
SELECT  
VH.Value,    
VH.TimeKey,   
RIGHT(M.MeasurementOriginalName, CHARINDEX('.', REVERSE(M.MeasurementOriginalName))-1) AS Type,      
SUBSTRING(M.MeasurementOriginalName, charindex('.', M.MeasurementOriginalName, charindex('.', M.MeasurementOriginalName, charindex('.', M.MeasurementOriginalName, charindex('.', M.MeasurementOriginalName, 1))+1)+1)+1,charindex('.', M.MeasurementOriginalName, charindex('.', M.MeasurementOriginalName, charindex('.', M.MeasurementOriginalName, charindex('.', M.MeasurementOriginalName, charindex('.', M.MeasurementOriginalName, 1))+1)+1)+1) - charindex('.', M.MeasurementOriginalName, charindex('.', M.MeasurementOriginalName, charindex('.', M.MeasurementOriginalName, charindex('.', M.MeasurementOriginalName, 1))+1)+1)-1)  as Component         

FROM [MSTR].[tblDimMeasurement] M      
INNER JOIN [AGG].[tblTmpFactMeasurementAnalogueValueHour] VH ON VH.MeasurementKey = M.MeasurementKey        

WHERE M.MeasurementOriginalName LIKE ('%A-414-C014%') 
and RIGHT(M.MeasurementOriginalName,2) IN ('PU','PI','TI','TU','.Q')           ),

cte_piv as(
select *, ROW_NUMBER() OVER (ORDER BY TimeKey) as Row# from cte_src  
PIVOT(  MAX(Value)  FOR TYPE IN ([PI],[PU],[TI],[TU],[Q])  )Pivotname  

)


Select * from cte_piv

在这里我选择我需要的字段，并使用 charindex 确保我得到正确的字符串部分。

然后旋转它，以便我得到PI, PU 等的结果，如上所示。

Answer 1

当我在存储过程中创建 Pivot 时，它开始工作了。然后使用临时表并逐行填充它们。然后选择临时表:)