SQL函数设计之临时表的使用

本文简述SQL函数设计之临时表的使用方法。

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[GETALL]') and xtype in (N'FN', N'IF', N'TF'))

drop function [dbo].[GETALL]

GO

--根据起始时间选择设定量、实出量、地面实出量以及出现0的情况，以查看故障信息

CREATE FUNCTION GETALL(@dateStart datetime,@dateEnd datetime)

RETURNS @Result TABLE(ENo int,PlanTotal int,FactTotal int,FactOutTotal int,FactZero int,FactOutZero int)

AS

BEGIN

DECLARE @Plan TABLE(ENo int ,PlanTotal int )

DECLARE @Fact TABLE(ENo int,FactTotal int,FactOutTotal int)

DECLARE @FactZero TABLE(ENo int,FactZero int)

DECLARE @FactOutZero TABLE(ENo int,FactOutZero int)

INSERT @Plan

SELECT Electrobath_No,sum(Al_P_Plan) AS planTotal

FROM Al_Product2005 as a

WHERE (C_date between @dateStart and @dateEnd) and (Al_Status<>'0') and (Al_P_Fact<>'0')

and

(

NOT EXISTS

(

SELECT *

FROM Al_Product2005 AS b

WHERE

(a.Al_F_Count < b.Al_F_Count) AND (a.Electrobath_No = b.Electrobath_No)

AND (a.Al_P_count = b.Al_P_count) AND (a.C_Date = b.C_Date) AND (Al_Status <> 0)

)

)

GROUP BY Electrobath_No

INSERT @Fact

SELECT DISTINCT Electrobath_No,sum(Al_P_Fact) as factTotal,sum(Al_P_FactOut) as factOutTotal

FROM Al_Product2005

WHERE (C_Date between @dateStart and @dateEnd)

GROUP BY Electrobath_No

INSERT @FactZero

SELECT Electrobath_No,count(Al_P_Fact) AS FactZero

FROM Al_Product2005

WHERE (C_Date between @dateStart and @dateEnd) and (Al_P_Fact='0')

GROUP BY Electrobath_No

INSERT @FactOutZero

SELECT Electrobath_No,count(Al_P_FactOut) as FactOutZero

FROM Al_Product2005

WHERE (C_Date between @dateStart and @dateEnd) and (Al_P_FactOut='0')

GROUP BY Electrobath_No

INSERT @Result

SELECT a.ENo,PlanTotal,FactTotal,b.FactOutTotal,c.FactZero,d.FactOutZero

FROM @Plan a,@Fact b,@FactZero c,@FactOutZero d

RETURN

END

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