Question

我正在使用SQL Server2014。我有一个税率表，其中包含税率的有效日期。没有指定结束日期，只有生效日期。每个税率可能具有多个税法管辖区，必须对这些税率进行累加才能得出有效税率。该查询用于在指定日期输出系统中的所有代码和税率：

SELECT
    Tx.STCCode,
    SUM(Tx.tax) AS 'Rate'
FROM 
    (SELECT 
         TT.STCCode,
         (SELECT TOP 1 TR.Rate
          FROM STA1 TR
          WHERE TT.STACode = TR.StaCode 
            AND TT.STAType = TR.SttType 
            AND '10/31/2017' >= TR.EfctDate
          ORDER BY TR.EfctDate DESC) AS Tax
     FROM  
         STC1 TT) AS Tx
GROUP BY 
    Tx.STCCode
ORDER BY 
    Tx.STCCode

输出：

STCCode    Rate
--------------------
CT         6.350000
EX         0.000000
MA         6.250000
NJ         6.875000
NYC        8.875000
NYNAS      8.625000
NYNR       8.375000
NYWC       7.375000
NYWP       8.375000
PA         6.000000
PHIL       8.141500
PHILBP     0.141500
RI         7.000000
SOFT       1.000000

我还有另一个记录表，其中包括交易日期和交易时需要计算税率的税码。如果我尝试将上面的查询用作税率字段的子查询，那么我将无法获得需要的字段到上面的查询的where子句中。很有可能是由于上述示例中的子查询。

我主要是一个SQL hack，一直在实时学习它。谢谢您的帮助。

带有子查询的样本。我需要字段T1.U_DTSIGNED来替换tax子查询中的硬编码日期：

select
T1.U_DTSIGNED,
T.U_SUBJOBID,
T1.U_COID,
T.U_TAXCODE,
(select
SUM(Tx.tax)
FROM 
(Select TT.STCCode,
(Select TOP 1
    TR.Rate
    FROM STA1 TR
    WHERE TT.STACode = TR.StaCode and TT.STAType = TR.SttType and 
'10/31/2017' >=TR.EfctDate
    Order By TR.EfctDate DESC
    ) as Tax
FROM STC1 TT ) as Tx
WHERE T.U_TAXCODE = Tx.STCCode
GROUP BY Tx.STCCode) as 'Rate'
FROM [@NWRCHGORDLINE] T
INNER JOIN [@NWRCHGORDHEADER] T1 ON T.U_COID = T1.U_COID and T.U_JOBID = 
T1.U_JOBID
WHERE T.U_ISTotal = 'Y' and T1.U_JOBID = 17106
Order By Len(T.U_COID),T.U_COID

示例结果：

2017-12-28 00:00:00.000,171060001,31,NJ,6.875000 2017-12-28 00:00:00.000,171060002,31,EX,0.000000 2017-12-28 00:00:00.000,171060003,31,EX,0.000000 2017-12-28 00:00:00.000,171060004,31,NJ,6.875000 2018-01-03 00:00:00.000,171060001,32,NJ,6.875000 2018-01-03 00:00:00.000,171060002,32,EX,0.000000 2018-01-03 00:00:00.000,171060003,32,EX,0.000000 2018-01-03 00:00:00.000,171060004,32,NJ,6.875000

所需结果，因为如果DTSigned日期为2018年，新泽西州的税率将在2018年1月1日生效，因此应显示更改的税率：

2017-12-28 00:00:00.000,171060001,31,NJ,6.875000 2017-12-28 00:00:00.000,171060002,31,EX,0.000000 2017-12-28 00:00:00.000,171060003,31,EX,0.000000 2017-12-28 00:00:00.000,171060004,31,NJ,6.875000 2018-01-03 00:00:00.000,171060001,32,NJ,6.625000 2018-01-03 00:00:00.000,171060002,32,EX,0.000000 2018-01-03 00:00:00.000,171060003,32,EX,0.000000 2018-01-03 00:00:00.000,171060004,32,NJ,6.625000

Answer 1

希望这个CROSS APPLY可以满足您的要求：

;with STC1 as (
select STACode = 'CT', STAType ='',STCCode='CT'
union all
select STACode = 'NJ', STAType ='',STCCode='NJ'
), STA1 as (
select Rate = 6.875, STAType ='',EfctDate='2017-01-01',StaCode ='NJ',SttType=''
union all
select Rate = 6.625, STAType ='',EfctDate='2018-01-01',StaCode ='NJ',SttType=''
union all
select Rate = 6.35, STAType ='',EfctDate='2017-01-01',StaCode ='CT',SttType=''
),[@NWRCHGORDLINE] as
(
    select U_COID='',U_JOBID='17106',U_ISTotal='Y',U_SUBJOBID='',U_TAXCODE='NJ'
    union all
    select U_COID='',U_JOBID='17106',U_ISTotal='Y',U_SUBJOBID='',U_TAXCODE='CT'
),[@NWRCHGORDHEADER] as
(
    select U_COID='',U_JOBID='17106',U_DTSIGNED='2017-12-31',U_TAXCODE='NJ'
    union all
    select U_COID='',U_JOBID='17106',U_DTSIGNED='2018-12-31',U_TAXCODE='NJ'
)

select
    T1.U_DTSIGNED,
    T.U_SUBJOBID,
    T1.U_COID,
    T.U_TAXCODE,
    Tax.Rate
FROM [@NWRCHGORDLINE] T
INNER JOIN [@NWRCHGORDHEADER] T1 
    ON T.U_COID = T1.U_COID 
    and T.U_JOBID = T1.U_JOBID
cross apply  ((select SUM(Tx.tax) 
                from (Select TT.STCCode,
                                (Select TOP 1
                                    TR.Rate
                                    FROM STA1 TR
                                    WHERE TT.STACode = TR.StaCode 
                                        and TT.STAType = TR.SttType 
                                        and T1.U_DTSIGNED >= TR.EfctDate
                                    Order By TR.EfctDate DESC
                                    ) as Tax
                FROM STC1 TT ) as Tx
                WHERE T.U_TAXCODE = Tx.STCCode
                GROUP BY Tx.STCCode
                )) Tax (Rate)

WHERE T.U_ISTotal = 'Y' 
    and T1.U_JOBID = 17106
Order By Len(T.U_COID),T.U_COID

根据日期汇总一列

1 个答案: