Question

我有两个字段将数据保存为varchar

field1 = 10,000.00 and field2 = 5,000.00

我现在需要添加这两个字段来查找总和。但当我添加为Field1 + Field2时

结果是10,000.005,000.oo

我尝试使用CAST（Field1作为十进制（12,2）），但它抛出一个错误，它无法将varchar转换为数字。

帮帮我。

                        SELECT     [1] AS ContractPriceExcluded, [2] AS Anticipated, [3] AS Approved, [4] AS claims, [5] AS ProvisionalSums, [6] AS CommitmentsToDate, [7] AS AnticipatedFCost, 
                  [8] AS VarianceToContract, [9] AS CertifiedPayments,[10] AS ContractPriceIncluded , [11] AS ProvisionalSumsNotactivated ,description, status, ReferenceNo
                    FROM         (SELECT     ISNULL([Workflow_CustomFormfields].[fieldnumber], '') AS fieldnumber, 
                                         CAST( REPLACE([Workflow_CustomFormFields].fieldvalue,',','')as Decimal(12,2))  AS fieldvalue, isnull(workflow_customforms.subject, '') AS description, 
                                          isnull(workflow_customforms.categoryvalue, '') AS status, isnull(workflow_customforms.reference, '') AS ReferenceNo
                   FROM          [dbo].[Workflow_CustomFormfields] INNER JOIN
                                          dbo.Workflow_CustomForms ON [dbo].[Workflow_CustomForms].[Id] = dbo.Workflow_CustomFormfields.customformId
                   WHERE      dbo.Workflow_CustomForms.ProjectId = 1 AND dbo.Workflow_CustomForms.CustomformtypeId = 75) PS PIVOT (max(fieldvalue) FOR fieldnumber IN ([1], [2], 
                  [3], [4], [5], [6], [7], [8], [9],[10],[11])) AS pivot_fieldvalue

Answer 1

 select cast(replace('10,000.00',',','') as decimal(12,2))

问题在于逗号

Answer 2

您是否将这两个值都转换为十进制？这很好用

DECLARE @one varchar(8), @two varchar(8)
SET @one = '10,000.00'
SET @two = '5,000.00'
SELECT CAST(replace(@one,',','') AS decimal(12,2))+
       CAST(replace(@two,',','') AS decimal(12,2))

Answer 3

您必须删除逗号并转换为十进制。见下文。

declare @field1 varchar(50) = '10,000.00' ,
 @field2 varchar(50)= '5,000.00'

select Convert(decimal(10,2),replace(@field1,',','')) +Convert(decimal(10,2),replace(@field2,',',''))

将Varchar转换为十进制

3 个答案: