如何通过param将大于200个字符的字符串传递给存储过程

时间：2017-01-26 14:02:50

标签： c# sql-server string stored-procedures large-data

我遇到了一个问题，在我的代码中，我必须对我的数据表中存在的所有文章进行求和请求，我将所有文章ID连接在一个字符串中，如'a1，a2，a3'，这是假设的工作。

但是我有大量的ID和大约150篇文章，所以我尝试传递给存储过程的字符串大约是1300个字符，当它转到存储过程时这是200个字符的截断。

您是否知道在没有SQL Server的情况下将大字符串传递给存储过程以截断此字符串的任何解决方案？

我可以在这里写下C＃代码或SQL存储过程，如果它可以帮助你帮助我。

这是存储过程：

ALTER PROCEDURE [dbo].[GetChargePetrin]
-- Add the parameters for the stored procedure here
@articlesList varchar(MAX)
AS

BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

        SELECT 
        CAST(SUM(CAST(Qa01 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa1',
        CAST(SUM(CAST(Qa02 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa2',
        CAST(SUM(CAST(Qa03 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa3',
        CAST(SUM(CAST(Qa04 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa4',
        CAST(SUM(CAST(Qa05 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa5',
        CAST(SUM(CAST(Qa06 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa6',
        CAST(SUM(CAST(Qa07 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa7',
        CAST(SUM(CAST(Qa08 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa8',
        CAST(SUM(CAST(Qa09 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa9',
        CAST(SUM(CAST(Qa10 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa10',
        CAST(SUM(CAST(Qa11 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa11',
        CAST(SUM(CAST(Qa12 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa12',
        CAST(SUM(CAST(Qa13 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa13',
        CAST(SUM(CAST(Qa14 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa14',
        CAST(SUM(CAST(Qa15 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa15',
        CAST(SUM(CAST(Qa16 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa16',
        CAST(SUM(CAST(Qa17 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa17',
        CAST(SUM(CAST(Qa18 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa18',
        CAST(SUM(CAST(Qa19 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa19',
        CAST(SUM(CAST(Qa20 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa20',
        CAST(SUM(CAST(Qa21 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa21',
        CAST(SUM(CAST(Qa22 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa22',
        CAST(SUM(CAST(Qa23 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa23',
        CAST(SUM(CAST(Qa24 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa24',
        CAST(SUM(CAST(Qa25 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa25',
        CAST(SUM(CAST(Qa26 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa26',
        CAST(SUM(CAST(Qa27 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa27',
        CAST(SUM(CAST(Qa28 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa28',
        CAST(SUM(CAST(Qa29 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa29',
        CAST(SUM(CAST(Qa30 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa30',
        CAST(SUM(CAST(Qa31 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa31',
        CAST(SUM(CAST(Qa32 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa32',
        CAST(SUM(CAST(Qa33 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa33',
        CAST(SUM(CAST(Qa34 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa34',
        CAST(SUM(CAST(Qa35 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa35',
        CAST(SUM(CAST(Qa36 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa36',
        CAST(SUM(CAST(Qa37 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa37',
        CAST(SUM(CAST(Qa38 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa38',
        CAST(SUM(CAST(Qa39 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa39',
        CAST(SUM(CAST(Qa40 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa40',
        CAST(SUM(CAST(Qa41 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa41',
        CAST(SUM(CAST(Qa42 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa42',
        CAST(SUM(CAST(Qa43 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa43',
        CAST(SUM(CAST(Qa44 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa44',
        CAST(SUM(CAST(Qa45 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa45',
        CAST(SUM(CAST(Qa46 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa46',
        CAST(SUM(CAST(Qa47 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa47',
        CAST(SUM(CAST(Qa48 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa48',
        CAST(SUM(CAST(Qa49 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa49',
        CAST(SUM(CAST(Qa50 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa50',
        CAST(SUM(CAST(Qa51 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa51',
        CAST(SUM(CAST(Qa52 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa52',
        CAST(SUM(CAST(Qa53 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa53',
        CAST(SUM(CAST(Qa54 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa54',
        CAST(SUM(CAST(Qa55 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa55',
        CAST(SUM(CAST(Qa56 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa56',
        CAST(SUM(CAST(Qa57 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa57',
        CAST(SUM(CAST(Qa58 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa58',
        CAST(SUM(CAST(Qa59 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa59',
        CAST(SUM(CAST(Qa60 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa60'
        FROM [PDP_TTP].[dbo].[PDP] p
        inner join [PDP_TTP].[dbo].[Articles] a ON a.Division=p.Division and a.Code_article=p.Code_article
        WHERE CAST(a.CO_UQB_PET AS INT) >0 and a.Code_article IN( SELECT Id = Item FROM dbo.SplitInts(@articlesList, ','));

END

2 个答案:

答案 0 :(得分：3)

我同意Sean Lange的评论，并建议使用表值参数而不是发送字符串并在sql中解析它 为此，您需要在sql server中创建用户定义的表类型：

CREATE TYPE dbo.ArticleIds as table
(
    Id varchar(10) -- should be the same as Code_article definition!
)
GO

然后用它作为

ALTER PROCEDURE [dbo].[GetChargePetrin]
-- Add the parameters for the stored procedure here
    @articlesList dbo.ArticleIds readonly -- Must be readonly!
AS

BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

        SELECT 
        CAST(SUM(CAST(Qa01 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa1',
        CAST(SUM(CAST(Qa02 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa2',
        -- ... more of the same
        CAST(SUM(CAST(Qa60 AS INT) /CAST(a.CO_UQB_PET AS INT)) AS varchar) as 'qa60'
        FROM [PDP_TTP].[dbo].[PDP] p
        INNER JOIN [PDP_TTP].[dbo].[Articles] a ON a.Division=p.Division AND a.Code_article=p.Code_article
        INNER JOIN @articlesList al ON a.Code_article = al.Id
        WHERE CAST(a.CO_UQB_PET AS INT) > 0 

END

要使用ADO.NET从c＃执行带有表值参数的存储过程，您需要发送类型为SqlDbType.Structured的参数，并传递DataTable作为其值。< / p>

答案 1 :(得分：0)

我的方法中有p.Size = 200;添加了Sql参数，我必须将其更改为p.Size = 8000;并且它正在运行。

感谢大家的帮助！

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