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’，这应该可行。
但我有大型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1300个字符，当它转到存储过程时这是200个字符的截断。
你知道任何解决方案将大字符串传递给没有SQL Server的存储过程来截断这个字符串吗？
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 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，需要发送类型为SqlDbType.Structured的参数，并传递DataTable作为其值。
我的p.Size = 200; 在我添加Sql参数的方法中，我不得不将其更改为p.Size = 8000; 它正在发挥作用。
谢谢大家的帮助！