C# 如何通过param将大于200个字符的字符串传递给存储过程

我遇到了一个问题，在我的代码中，我必须对数据表中存在的所有项目发出求和请求，我将所有项目ID连接在一个字符串中，如“a1、a2、a3”，这应该是可行的

但是我有一个大的ID和大约150篇文章，所以我试图传递给存储过程的字符串大约是1300个字符，当它传递给存储过程时，这个字符串被截断为200个字符

您知道将大字符串传递到存储过程而不使用SQL Server截断该字符串的任何解决方案吗

我可以在这里写C#代码或SQL存储过程，如果它能帮助您

以下是存储过程：

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

---

我有

p.Size=200

在添加Sql参数的方法中，我必须将其更改为

p.Size=8000并且它正在工作

谢谢大家的帮助
 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：

将类型dbo.ArticleIds创建为表
(
Id varchar（10）--应该与Code_文章定义相同！
)
去

然后将其用作


要使用ADO.NET从c#执行带有表值参数的存储过程，需要发送类型为
SqlDbType.Structured
的参数，并将
DataTable
作为其值传递。
我们需要查看存储过程。例如，param很可能是
varchar（200）
，然后答案就显而易见了！您应该查看表值参数，而不是传递分隔字符串。当您传递分隔字符串时，您必须拆分它们或通过动态sql暴露sql注入漏洞。因此存储的进程没有限制长度，可能C#为该参数指定了200长度（所有帐户都有）。也许你可以先调试你的代码，而不是让我们猜测！。。。。所以通过消除的过程，你认为它可能是什么？（提示：请参阅我之前的评论）对于上一次更新，其中包括示例查询，我敦促您规范化此表。Qa1-60采用了可怕的设计，并通过重复列违反了1NF。想想加上QA70—90会有多痛苦。您必须为每个查询添加20个新列。如果这被正确地规范化，您将添加新行，并且您的任何查询都不需要更改。这将一直工作到您超过8000个字符。构建这个过程对于可伸缩性、性能和可维护性来说要好得多，所以不管您有多少值。这就是表值参数真正擅长的地方。我将使用你的解决方案。起初，我没有想到未来我会有超过500篇文章，所以我需要你的解决方案来处理这一数量的文章。感谢我刚刚完成了您的解决方案的实现和测试，它工作得很好，感谢您花时间向我展示sql示例的最佳解决方案，您救了我一天！
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