Question

我有一个表“Table1_201403”，其中1个varchar列为'Column 0'。现在，我想通过下面的查询将此表中的必要数据插入到Master_Table2中 -

SELECT '2014/03' AS Period
    ,ltrim(rtrim(SUBSTRING([Column 0], 1, 12))) AS 'Account'
    ,cast(ltrim(rtrim(SUBSTRING([Column 0], 17, 2))) + ltrim(rtrim(SUBSTRING([Column 0], 15, 2))) + ltrim(rtrim(SUBSTRING([Column 0], 13, 2))) AS DATE) AS Trans_Date
    ,CASE 
        WHEN ltrim(rtrim(SUBSTRING([Column 0], 30, 1))) = '-'
            THEN CAST((CAST(ltrim(rtrim(SUBSTRING([Column 0], 19, 11))) AS DECIMAL) / 100) AS DECIMAL(9, 2)) * - 1
        ELSE CAST((CAST(ltrim(rtrim(SUBSTRING([Column 0], 19, 11))) AS DECIMAL) / 100) AS DECIMAL(9, 2))
        END AS Amount
INTO Master_Table2
FROM Table1_201403
WHERE SUBSTRING([Column 0], 11, 1) <> 'B'

当我尝试这样做时，我收到错误'错误将数据类型varchar转换为数字'。

什么是合适的解决方案。任何帮助将不胜感激。

感谢。

修改 -

    SELECT '2014/03' AS Period
    ,ltrim(rtrim(SUBSTRING([Column 0], 1, 12))) AS 'GL Account'
    ,cast(ltrim(rtrim(SUBSTRING([Column 0], 17, 2))) + ltrim(rtrim(SUBSTRING([Column 0], 15, 2))) + ltrim(rtrim(SUBSTRING([Column 0], 13, 2))) AS DATE) AS Trans_Date
    ,case
        when ltrim(rtrim(SUBSTRING([Column 0], 30, 1))) = '-'
                                THEN( 
                                        case when isnumeric(ltrim(rtrim(SUBSTRING([Column 0], 19, 11))))=1 then            
                                        CAST(CAST((CAST(ltrim(rtrim(SUBSTRING([Column 0],19,11))) AS decimal) / 100) AS decimal(9,2)) AS decimal)*-1 
                                        else 
                                        CAST(CAST((CAST(ltrim(rtrim(SUBSTRING([Column 0],19,11))) AS decimal) / 100) AS decimal(9,2)) AS varchar)*-1 end
                                    )
                                ELSE(

                                        case when isnumeric(ltrim(rtrim(SUBSTRING([Column 0], 19, 11))))=1 then            
                                        CAST(CAST((CAST(ltrim(rtrim(SUBSTRING([Column 0],19,11))) AS decimal) / 100) AS decimal(9,2)) AS decimal) 
                                        else 
                                        CAST(CAST((CAST(ltrim(rtrim(SUBSTRING([Column 0],19,11))) AS decimal) / 100) AS decimal(9,2)) AS varchar) end
                                    )
            END  as Amount
            INTO TABLE2
FROM TABLE1
WHERE SUBSTRING([Column 0], 11, 1) <> 'B'

我尝试使用IsNumeric Logic。但无法使代码正常工作。请看一看。 @Adi T

并且，数据如下所示使用您的脚本@t_m -

第0列ValidDecimal 006125 01031400000451745+ JNLCIS批次01/03/2014 N BA0119 C L 1 006125 01031400000212077+ JNLCIS批次01/03/2014 N BA0120 C L 1 006125 01031400000311569+ JNLCIS批次01/03/2014 N BA0119 P L 1

Answer 1

怀疑Amount逻辑可能返回一些varchar值而不是decimal。

运行下面的脚本以检查您的金额逻辑是否正确。当您运行脚本时，如果一切正常，则不应返回任何记录。

    select *
from 
(
    select '2014/03' as Period,
    ltrim(rtrim(SUBSTRING([Column 0],1,12))) as 'Account', 
    cast(ltrim(rtrim(SUBSTRING([Column 0],17,2)))+ltrim(rtrim(SUBSTRING([Column 0],15,2)))+ltrim(rtrim(SUBSTRING([Column 0],13,2))) AS DATE) 
    as Trans_Date,
    ISNUMERIC(case when ltrim(rtrim(SUBSTRING([Column 0],30,1)))='-' then CAST((CAST(ltrim(rtrim(SUBSTRING([Column 0],19,11))) AS decimal) / 100) AS decimal(9,2))*-1
            else CAST((CAST(ltrim(rtrim(SUBSTRING([Column 0],19,11))) AS decimal) / 100) AS decimal(9,2)) END) As ValidDecimal
    from Table1_201403
    where SUBSTRING([Column 0],11,1) <> 'B' 
) CheckForValidDecimal
where ValidDecimal = 0

<强>修改：

在下面运行此脚本以查找不正确的[Column 0]记录。然后，您可以更改金额逻辑以解决问题。

    select *
from 
(
    select 
    [Column 0], 
    ISNUMERIC(case when ltrim(rtrim(SUBSTRING([Column 0],30,1)))='-' then CAST((CAST(ltrim(rtrim(SUBSTRING([Column 0],19,11))) AS decimal) / 100) AS decimal(9,2))*-1
            else CAST((CAST(ltrim(rtrim(SUBSTRING([Column 0],19,11))) AS decimal) / 100) AS decimal(9,2)) END) As ValidDecimal
    from Table1_201403
    where SUBSTRING([Column 0],11,1) <> 'B' 
) CheckForValidDecimal
where ValidDecimal = 0

Answer 2

您正在尝试将数据从varchar转换为decimal。如果数据属于charachters，则无法转换为十进制。

use cast() or convert() function

Answer 3

请尝试这种方式

SELECT '2014/03' AS Period
        ,ltrim(rtrim(SUBSTRING([Column 0], 1, 12))) AS 'Account'
        ,cast(ltrim(rtrim(SUBSTRING([Column 0], 17, 2))) + ltrim(rtrim(SUBSTRING([Column 0], 15, 2))) + ltrim(rtrim(SUBSTRING([Column 0], 13, 2))) AS DATE) AS Trans_Date
        ,CASE 
            WHEN ltrim(rtrim(SUBSTRING([Column 0], 30, 1))) = '-'
                THEN case when isnumeric( case when isnumeric(ltrim(rtrim(SUBSTRING([Column 0], 19, 11))
                ))=1 then            
                CAST(ltrim(rtrim(SUBSTRING([Column 0], 19, 11)))AS decimal) else 
                CAST(ltrim(rtrim(SUBSTRING([Column 0], 19, 11)))AS varchar) end)=1
                then CAST(case when isnumeric(ltrim(rtrim(SUBSTRING([Column 0], 19, 11))
                ))=1 then            
                CAST(ltrim(rtrim(SUBSTRING([Column 0], 19, 11)))AS decimal) else 
                CAST(ltrim(rtrim(SUBSTRING([Column 0], 19, 11)))AS varchar) end AS decimal(9,2)) *-1
                else 
                CAST(ltrim(rtrim(SUBSTRING([Column 0], 19, 11)))AS varchar)
                ELSE
                  CAST(case when isnumeric(ltrim(rtrim(SUBSTRING([Column 0], 19, 11))
                ))=1 then            
                CAST(ltrim(rtrim(SUBSTRING([Column 0], 19, 11)))AS decimal) else 
                CAST(ltrim(rtrim(SUBSTRING([Column 0], 19, 11)))AS varchar) end AS decimal(9,2)) /100 AS DECIMAL
                else 
                CAST(ltrim(rtrim(SUBSTRING([Column 0], 19, 11)))AS varchar)
                END 
                INTO Master_Table2
    FROM Table1_201403
    WHERE SUBSTRING([Column 0], 11, 1) <> 'B'

错误'将数据类型varchar转换为数字时出错' - 创建新表

3 个答案: