如何通过参数将大于200个字符的字符串传递给存储过程 [英] How to pass a string larger than 200 character to a stored procedure via param

问题描述

我陷入一个问题，在我的代码中，我必须对数据表中存在的所有文章进行求和，将所有文章ID连接到一个字符串中，例如"a1，a2，a3"，这应该是工作.

I got stuck with one problem, in my code i have to make a sum request of all article that is present in my datatable, i concatenate all article ID in one string like 'a1,a2,a3' and this is supposed to work.

但是我有很大的ID，大约有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，它将截断为200个字符.

But i have large ID and around 150 article, so the string i try to pass to the stored procedure is around 1300 characters and this is truncate at 200 characters when it goes to the stored procedure.

您知道在不使用SQL Server截断此字符串的情况下将大字符串传递给存储过程的任何解决方案吗?

Do you know any solution to pass a large string to a stored procedure without SQL Server to truncate this string?

如果可以帮助您，我可以在此处编写C#代码或SQL存储过程.

I can write here the C# code or SQL stored procedure if it can help you to help me.

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

推荐答案

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中进行解析.
为此，您需要在sql服务器中创建用户定义的表类型:

I agree with Sean Lange's comment, and would suggest to use a table valued parameter instead of sending a string and parsing it in sql
To do that, you need to create a user defined table type in your sql server:

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

，然后将其用作

and then use it as

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使用来自c#的表值参数执行存储过程，则需要发送类型为SqlDbType.Structured的参数并传递DataTable作为其值.

To execute a stored procedure with a table valued parameter from c# using ADO.NET, you need to send a parameter with type SqlDbType.Structured and pass a DataTable as it's value.

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