Question

我已经在Microsoft SQL Server Mgmt studio中设置了下面的查询，并且收到了有关Rate和Variable rate列的有趣结果。

当我在Management Studio中运行查询时，我收到以下结果集：列按以下顺序排列：TradeID，Dealer，IssuanceDate，MaturityDate，Face，Rate，Proceeds，TxnCCY，VariableRate

 Trade ID                Dealer   IssuanceDate MaturityDate Face     Rate    Proceeds  TXN CCY Variable Rate
 PERNOD & RICARD            BAR   20121212    20121221  10000000    0.24    9999400 USD NULL
PUT_30 04821QAP6 1ML POOL   BAS   20121022    20130418  100000000   0.28    100000000   USD 0.2075

当我在批处理文件中在Management Studio外部运行查询时，我收到以下结果集：

Trade ID                Dealer   IssuanceDate MaturityDate Face     Rate    Proceeds  TXN CCY    Variable Rate
PERNOD & RICARD;          BAR;20121212;        20121221;  10000000;0.23999999999999999;9999400;USD;
PUT_30 04821QAP6 1ML POOL;BAS;20121022;        20130418;  100000000;0.28000000000000003;100000000;USD;
       0.20749999999999999

SQL Server Management Studio如何舍入值，但我的批处理文件不是？我需要在批量提取中看到舍入值。我已经尝试将列的数据类型更改为十进制和真实只是为了接收错误。

有没有人对我如何使这项工作有所建议并在我的摘录中显示舍入值？

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
ALTER PROCEDURE [dbo].[CALYON_TRADES_LIABILITIES_TEST]
-- Add the parameters for the stored procedure here
@BusDate datetime = NULL
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;

-- Insert statements for procedure here
 IF @BusDate is null
  BEGIN
DECLARE @yesterday datetime
set @yesterday = DATEADD(D, -1, GETDATE())
set @BusDate = CONVERT(datetime,
convert(varchar(2), datepart(month, @yesterday)) + '/' + convert(varchar(2),datepart
(day, @yesterday)) + '/' + convert(varchar(4), datepart(year, @yesterday))
)
END
Drop table dbo.VariableRateLiabilities
Create table dbo.VariableRateLiabilities
(TradeID VarChar(35) null,
Dealer VarChar(15) null,
IssuanceDate varchar (8) null,
MaturityDate varchar (8) null,
Face numeric (9) null,
Rate float null,
Proceeds numeric null,
TxnCCY VarChar (3) null,
VariableRate float null,
VariableRateDate varchar (8) null)
INSERT INTO dbo.VariableRateLiabilities SELECT DISTINCT
RPT.TradeName as TradeID,
RPT.DealerShortName as Dealer,
CONVERT(varchar(8), RPT.TxnValueDate, 112) as IssuanceDate,
CONVERT(varchar(8), RPT.MaturityDate, 112) as MaturityDate,
RPT.Face,
RPT.Rate,
RPT.Proceeds,
RPT.TxnCCY,
IRI.InterestIdxRate as VariableRate,
CONVERT (varchar (8), IRI.InterestIdxDate, 112) as VariableRateDate
From RPT_TradesIssuance RPT
INNER JOIN LiabilityTrades LT
ON RPT.Price = LT.Price
LEFT OUTER JOIN InterestRateIndexes IRI
ON LT.InterestRateCode = IRI.InterestRateCode
WHERE RPT.SPVId=12
AND RPT.MaturityDate > @BusDate
AND RPT.TxnValueDate <= @BusDate
select TradeId,Dealer,IssuanceDate,MaturityDate,Face,Rate,Proceeds,TxnCCY,VariableRate
from dbo.VariableRateLiabilities
where TradeId NOT LIKE 'PUT%'
UNION
select         a.TradeId,a.Dealer,a.IssuanceDate,a.MaturityDate,a.Face,a.Rate,a.Proceeds,a.TxnCCY,a.VariableRate
from dbo.VariableRateLiabilities a
where a.VariableRateDate in (select MAX(b.VariableRateDate) from      dbo.VariableRateLiabilities b where a.TradeID = b.TradeID)

ORDER BY Dealer,1
END

Answer 1

如果可以在处理资金时避免使用浮点数据类型，那么您可能应该这样做。无论您在何处看到float数据类型，请尝试将其替换为数字。

与普通观点相反，您无法将任意浮点值舍入到两个位置。任何涉及浮点值的计算都可能需要将所有值转换为浮点数，并且它可能会返回一个浮点数。（我在此查找了SQL Server文档，但还没有找到它们。）

使用正确的数据类型将解决问题的根本原因。

你可能能够通过在正确的时间进行显式投射和舍入来解决实际问题，但每个人都必须每次都完全正确。修复根本原因使每个人的生活更轻松。（cast(float_column_name as numeric(n,m)，其中'n'和'm'取决于应用程序。您可以选择convert()而不是强制转换。）

Answer 2

您的表格定义如下：

CREATE TABLE dbo.VariableRateLiabilities (
    TradeID VARCHAR(35) NULL
    ,Dealer VARCHAR(15) NULL
    ,IssuanceDate VARCHAR(8) NULL
    ,MaturityDate VARCHAR(8) NULL
    ,Face NUMERIC(9) NULL
    ,Rate NUMERIC(18, 2) NULL
    ,Proceeds NUMERIC NULL
    ,TxnCCY VARCHAR(3) NULL
    ,VariableRate NUMERIC(18, 4) NULL
    ,VariableRateDate VARCHAR(8) NULL
);

您的数据插页将如下所示（假设原始值为浮点数或类似内容，因此您需要CAST或CONVERT）：

INSERT INTO dbo.VariableRateLiabilities
SELECT  DISTINCT
        RPT.TradeName AS TradeID
        ,RPT.DealerShortName AS Dealer
        ,CONVERT(VARCHAR(8), RPT.TxnValueDate, 112) AS IssuanceDate
        ,CONVERT(VARCHAR(8), RPT.MaturityDate, 112) AS MaturityDate
        ,RPT.Face
        ,CAST(RPT.Rate AS NUMERIC(18, 2)) AS Rate
        ,RPT.Proceeds
        ,RPT.TxnCCY
        ,CAST(IRI.InterestIdxRate AS NUMERIC(18,4)) AS VariableRate
        ,CONVERT (VARCHAR(8), IRI.InterestIdxDate, 112) AS VariableRateDate
FROM    RPT_TradesIssuance RPT
INNER JOIN LiabilityTrades LT ON RPT.Price = LT.Price
LEFT OUTER JOIN InterestRateIndexes IRI ON LT.InterestRateCode = IRI.InterestRateCode
WHERE   RPT.SPVId = 12
        AND RPT.MaturityDate > @BusDate
        AND RPT.TxnValueDate <= @BusDate;

我不确定当您尝试CAST这样的Rate和VariableRate列时会发生什么，因为这取决于他们在{{1}中的数据类型}和RPT_TradesIssuance表。他们是InterestRateIndexes吗？

（请注意，我选择FLOAT和NUMERIC(18, 2)作为data types，但您应根据将存储在这些列中的数据对其进行调整。）

Answer 3

在对它们进行四舍五入之前，您应该将FLOAT变量转换为DECIMAL。

值在SQL Server Management Studio中显示为四舍五入，但在提取时不显示

3 个答案: