Sql 在具有空值的参数中选择多值和空值

所以这有点混乱。我已经有了一个存储过程。我的报告有5到6个参数。我希望它以这样一种方式运行报告，即您应该能够在下拉列表中选择多个值，并使其保持可选（而不是选择任何值）。另一件事是，我的参数值也有空值，我用NA替换了它。我尝试在参数属性中使用默认值，对某些选择有效，而对某些选择无效。我仍然是SSRS的中间人。任何帮助都将不胜感激。

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谢谢

我假设您已经创建了一个函数，并在存储过程中使用该函数将该存储过程作为多值选择

在您的函数中，无论哪个变量具有varchar或任何字符串数据类型，都会像varchar（MAX）一样将其大小设置为MAX，并在存储过程中为参数执行相同的操作

这一点背后的原因是：当您将数据类型提供为varchar（255）时，它将只接受255个字符的值，如果您的值字符超过该限制，则它将截断超过该限制的数据。您正在将它们设置为多选，因此可能需要将它们设置为varchar（max）

还将参数的存储过程中的大小设为Max

注意：Varchar（Max）只是一个例子。可以为函数和存储过程中使用的任何字符串数据类型提供max

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让我知道它是否有效。

如果您要求为您（或其他人）编写的代码提供解决方案，您可能希望发布您已经发布的内容，以便人们可以帮助您修复或增强它。正确。我已经创建了一个函数，该函数将从参数中获取值，并将它们拆分为逗号“，”，这样每个值都被分隔为一个值。您可以共享函数和存储过程的代码吗？当然。。。但是出于某种原因，这个评论框要求对我的代码进行一些格式化。有人可以帮助解决我的问题吗？任何类型的帮助都将非常感激！您能否将函数中的值nvarchar（100）更改为值nvarchar（max）？检查它是否工作？有人能帮我吗？我可以提供你需要的所有必要信息。

   ALTER PROCEDURE [dbo].[sp_PIMSelect_AJ_Test] 

@network nvarchar(MAX),
--@provider nvarchar(MAX),
--@affiltype varchar(MAX),
--@npi varchar(MAX),
--@tin varchar(MAX),
--@inprovtype varchar (MAX),
@SLG nvarchar(MAX),
@county nvarchar(MAX),
@zip nvarchar(Max),
@specCode nvarchar(Max),
@affiltype nvarchar(Max),
@contract nvarchar(Max)

    AS

    SET NOCOUNT ON;

select * from ( 
    select 
distinct    P1.Provid as PIMProviderID,
            P.NetworkName,
            --COALESCE(pa.affiltype, 'NA') as affiliationtype,
            PP1.planprovid as ProviderPlanProvID,
            p1.lastname as ProviderLastName,
            p1.Firstname as ProviderFirstName,
            P1.Profdesig as ProviderTitle,
            p1.intprovtype as ProviderIntProvType,
            COALESCE(NULLIF(P1.Provtype, ''), 'NA') as ProviderProvType,
            XP1.Description as ProviderTypeDescription,
            COALESCE(ps1.specialtycode, 'NA') as ProviderSpecialtyCode,
            ps1.DirectorySpec as ProviderSpecialityDescription,
            ps1.spectype as ProviderSpecType,
            p1.CredType as ProviderCredType,
            p1.phyaddress1 as ProviderPhyAddress1,
            p1.phyaddress2 as ProviderPhyAddress2,
            p1.phycity as ProviderPhyCity,
            p1.phystate as ProviderPhyState,
            p1.phyzipcode as ProviderPhyZipCode,
            p1.phycounty as ProviderPhyCounty,
            p1.address1 as ProviderMailingAddress1,
            p1.address2 as ProviderMailingAddress2,
            p1.city as ProviderMailingCity,
            p1.state as ProviderMailingState,
            p1.Zipcode as ProviderMailingZip,
            p1.county as ProviderMailingCounty,
            COALESCE(NULLIF(p1.TIN, ''),'0') as ProviderTIN,
            COALESCE(NULLIF(p1.NPI, ''),'0') as ProviderNPI,


            pa.Affiltype as AffilType,
            p.provid as AffilPIMProviderID,
            PP.planprovid as AffiliationPlanProvID,
            p.Lastname as AffilLastName,
            p.Firstname as AffilFirstName,
            COALESCE(p.intprovtype, 'NA') as AffilIntProvType,
            XP.Description as AffiliationTypeDescription,
            ps.specialtycode as AffilSpecialtyCode,
            ps.spectype as AffilSpecType,
            ps.directoryspec as AffilSpecialtyDescription,
            PA.IntDirLocation as AffilDirLocation,
            p.phyaddress1 as AffilPhyAddress1,
            p.phyaddress2 as AffilPhyAddress2,
            p.phycity as AffilPhyCity,
            p.phystate as AffilPhyState,
            COALESCE(NULLIF(p.phyzipcode, ''), 'NA') as AffilPhyZipCode,
            COALESCE(NULLIF(p.phycounty, ''), 'NA') as AffilPhyCounty,
            p.address1 as AffilMailingAddress1,
            p.address2 as AffilMailingAddress2,
            p.city as AffilMailingCity,
            p.state as AffilMailingState,
            p.Zipcode as AffilMailingZip,
            p.county as AffilMailingCounty,
            COALESCE(NULLIF(p.TIN,  ''),'0') as AffilTIN,
            COALESCE(NULLIF(p.NPI, ''),'0') as AffilNPI,
            COALESCE(CI.contractid, 'NA') as AffilContractID,
            COALESCE(C.description, 'NA') as AffilContractDesc


     from ProviderManager.dbo.Provider p
     left join ProviderManager.dbo.XProviderTypes XP on P.Provtype = XP.[Provider Type_ID]
     left join ProviderManager.dbo.planprovinfo PP on P.Provid = PP.provid
    left join ProviderManager.dbo.provspecialty ps on ps.provid = p.Provid
    left join ProviderManager.dbo.Affiliation pa on pa.affilid= p.Provid
    left join ProviderManager.dbo.provider p1 on p1.provid = pa.provid
    left join ProviderManager.dbo.CredApproval CA on P1.NPI = CA.NPI
    left join ProviderManager.dbo.planprovinfo PP1 on P1.Provid = PP1.provid
    left join ProviderManager.dbo.provspecialty ps1 on p1.Provid = ps1.provid
    left join ProviderManager.dbo.XProviderTypes XP1 on P1.Provtype = XP1.[Provider Type_ID]
    left join ProviderManager.dbo.contractinfo CI on P1.Provid = CI.provid and P.intprovtype = 'Group' and P.Provid = CI.affilid
    left join ProviderManager.dbo.Contract C on CI.contractid 
               COLLATE SQL_Latin1_General_CP1_CI_AS = C.contractid COLLATE SQL_Latin1_General_CP1_CI_AS) cte
    WHERE  
    cte.ProviderIntProvType IN ('Facility', 'Physician')
    and (cte.NetworkName COLLATE DATABASE_DEFAULT IN (Select Value from VIB_Extracts.dbo.FnSplit(@network, ',')))
    and (cte.AffilPIMProviderID IN (Select Value from VIB_Extracts.dbo.FnSplit(@SLG, ',')))
    and (cte.AffilPhyCounty COLLATE DATABASE_DEFAULT IN (Select Value from VIB_Extracts.dbo.FnSplit(@county, ','))OR (@county = 'NA'))
    and (cte.Affilphyzipcode COLLATE DATABASE_DEFAULT IN (Select Value from VIB_Extracts.dbo.FnSplit(@zip, ',')) OR (@zip = 'NA'))
    and (cte.ProviderSpecialtyCode COLLATE DATABASE_DEFAULT IN (Select Value from VIB_Extracts.dbo.FnSplit(@specCode, ',')))
    and (cte.ProviderProvType COLLATE DATABASE_DEFAULT IN (Select Value from VIB_Extracts.dbo.FnSplit(@affiltype, ',')))
    and (cte.AffilContractID COLLATE DATABASE_DEFAULT IN (Select Value from VIB_Extracts.dbo.FnSplit(@contract, ',')))
    --and (cte.providerNPI COLLATE DATABASE_DEFAULT IN (Select Value from VIB_Extracts.dbo.FnSplit(@npi,','))) 
    --and (cte.providerTIN COLLATE DATABASE_DEFAULT IN (Select Value from VIB_Extracts.dbo.FnSplit(@TIN,',')))
    Order by Cte.ProviderLastName

    USE [VIB_Extracts]
GO
/****** Object:  UserDefinedFunction [dbo].[FnSplit]    Script Date: 4/29/2017 9:59:16 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO


ALTER FUNCTION [dbo].[FnSplit]
(
@List nvarchar(MAX),
@SplitOn nvarchar(5)
)  
RETURNS @RtnValue table 
(

Id int identity(1,1),
Value nvarchar(100)
) 
AS  
BEGIN
While (Charindex(@SplitOn,@List)>0)
Begin 
Insert Into @RtnValue (value)
Select
Value = ltrim(rtrim(Substring(@List,1,Charindex(@SplitOn,@List)-1))) 
Set @List = Substring(@List,Charindex(@SplitOn,@List)+len(@SplitOn),len(@List))
End 

Insert Into @RtnValue (Value)
Select Value = ltrim(rtrim(@List))
Return
END