SSRS - 空值

Question

我@Destinataire在SSRS中有一个参数,它有一个值列表加一个空字符串

我创建了一个我设置为可用值的查询,它给出了下拉列表

SELECT code_name FROM tableA UNION ALL SELECT ''

使用空字符串运行报表时,我没有结果

我试图将参数设置为文本框,它也没有做任何事情

然而,在运行我用来运行此报告的SQL查询时,事情很好,因为我检索了所有行(请参阅下面的查询)

DECLARE @DateCmt DATE = '05/09/2015',
        @DateFin DATE = '05/09/2016',
        @Restriction INT = 1,
        @Destinataire VARCHAR(5) = ''
        --
        ;

--SELECT @DateCmt,@DateFin

 SELECT DISTINCT 
CFE_EDI.IU_LIASSE
,CFE_EDI.ETAT
,CFE_EDI.DATHRMAJ -- nouveau
,CFE_EDI.ESP_APPLI
,CFE_EDI.NOM_RS
,PARTENAIRES.LIBEL
,PARTENAIRES.CODE_INSEE
,CFE_EDI.DATHR_ENV -- nouveau
,CFE_EDI.DATHR_MEF -- nouveau
,CFE_EDI.DATHR_PRE -- nouveau
,CFE_EDI.DATHR_OUV -- nouveau
--,CFE_EDI.DATEHR_DEPOT-- mettre l'heure
,CFE_EDI.GESTDEL
--,CFE_SERVICE_DEST.IU_DEST
--,CFE_SERVICE.IU_LIASSE
,CASE WHEN CFE_EDI.ETAT = 'MEF' THEN 'En Attente le'
     WHEN CFE_EDI.ETAT = 'PRE' THEN 'Préparé le' 
     WHEN CFE_EDI.ETAT = 'ENV' THEN 'Envoyé le'
     WHEN CFE_EDI.ETAT = 'OUV' THEN 'Réceptionné le'
     WHEN CFE_EDI.ETAT = 'NRM' THEN 'Non remis le'
     WHEN CFE_EDI.ETAT = 'NAQ' THEN 'Non acquitté le'
     END AS ChampEtat
,CASE WHEN CFE_EDI.ETAT = 'OUV' THEN 'Date d''envoi : ' + CONVERT(VARCHAR,CFE_EDI.DATHR_ENV,103)
END AS Date_Envoi,
CASE 
WHEN CFE_EDI.ETAT='MEF' THEN  CONVERT(VARCHAR,CFE_EDI.DATHR_MEF,103) 
WHEN CFE_EDI.ETAT='PRE' THEN  CONVERT(VARCHAR,CFE_EDI.DATHR_PRE,103) 
WHEN CFE_EDI.ETAT='ENV' THEN  CONVERT(VARCHAR,CFE_EDI.DATHR_ENV,103) 
WHEN CFE_EDI.ETAT='OUV' THEN  CONVERT(VARCHAR,CFE_EDI.DATHR_OUV,103) 
ELSE CONVERT(VARCHAR,CFE_EDI.DATHR_DEPOT,103) END AS DateMaj ,
CASE
WHEN CFE_EDI.ETAT='MEF' then CONVERT(VARCHAR,CFE_EDI.DATHR_MEF,108) 
WHEN CFE_EDI.ETAT='PRE' then CONVERT(VARCHAR,CFE_EDI.DATHR_PRE,108) 
WHEN CFE_EDI.ETAT='ENV' then CONVERT(VARCHAR,CFE_EDI.DATHR_ENV,108) 
WHEN CFE_EDI.ETAT='OUV' then CONVERT(VARCHAR,CFE_EDI.DATHR_OUV,108)
ELSE CONVERT(VARCHAR,CFE_EDI.DATHR_DEPOT,108) END AS HeureMaj,
PARTENAIRES.LIBEL + '(' + CFE_EDI.CODE_INSEE + ')' AS LibelDestinataire
--,CASE WHEN @Restriction = 1 THEN '1'
--     WHEN @Restriction = 0 THEN '0' END AS Restriction
,CASE WHEN @DateCmt != @DateFin AND @DateCmt <  @DateFin THEN 'Diffusion Xml du ' + CONVERT(VARCHAR,(@DateCmt),103) + ' au ' + CONVERT(VARCHAR,(@DateFin),103) ELSE 
'Diffusion EDI Xml du ' + CONVERT(VARCHAR,@DateCmt,103) END AS Plage_Diffusion
-- INTO 
 FROM   
 (PARTENAIRES 
 INNER JOIN dbo.CFE_EDI ON PARTENAIRES.CODE_INSEE = CFE_EDI.CODE_INSEE) 
INNER JOIN dbo.CFE_SERVICE ON CFE_EDI.IU_LIASSE = CFE_SERVICE.IU_LIASSE
INNER JOIN dbo.CFE_SERVICE_DEST ON (PARTENAIRES.IU_PART = CFE_SERVICE_DEST.IU_PART_CFE)
WHERE 
case when @Restriction = 1
              then case when CFE_EDI.ETAT in('ENV','OUV') then 1 else 0 end
           when @Restriction = 0
              then case when CFE_EDI.ETAT not in('ENV','OUV') then 1 else 0 end
           else case when CFE_EDI.ETAT <> '' then 1 else 0 end
       end = 1
AND 
CFE_EDI.CODE_INSEE IS NOT NULL AND CFE_EDI.CODE_INSEE != '' 
    AND    CASE --WHEN CFE_EDI.CODE_INSEE IS NOT NULL AND CFE_EDI.CODE_INSEE !=''
           --THEN CASE 
           WHEN @Destinataire != '' AND (@Destinataire) IS NOT NULL
              THEN CASE WHEN CFE_EDI.CODE_INSEE = @Destinataire THEN 1 ELSE 0 END
           ELSE CASE WHEN CFE_EDI.CODE_INSEE = PARTENAIRES.CODE_INSEE 
                    AND cfe_edi.dathrmaj > @DateCmt AND cfe_edi.dathrmaj < @DateFin 
                    AND CFE_EDI.GESTDEL = '1' THEN 1 ELSE 0 END  
           END = 1

第一个问题是要知道是否有办法设置参数而不使用我的愚蠢技巧.

第二个问题是为什么带有空字符串的参数的查询可以解决这个问题,一旦你使用SSRS,什么都没有.

在此先感谢您的帮助

更新我尝试设置WHEN LEN(@Destinataire) > 0与@Destinataire = ''上一个,但没有运气.

更新2我现在的目标是有一个解决方案,将检索所有数据,如果@Destinataire等于''或NULL.但是,考虑到这一点,此解决方案相当于填充了所有值@Destinataire.我会说,不管怎样.

最后更新我从头开始重新创建了一切哦!魔术,分组或一切选项按照愿望工作.我仍然不知道出了什么问题,但我对结果很满意.非常感谢您的帮助和支持.

Answer 1

查看您的查询以及传递 @Destinataire 的位置，您应该能够根据 where 子句传递 null 值，并获得与传递 '' 相同的效果

 CASE --WHEN CFE_EDI.CODE_INSEE IS NOT NULL AND CFE_EDI.CODE_INSEE !=''
       --THEN CASE 
       WHEN @Destinataire != '' AND (@Destinataire) IS NOT NULL
          THEN CASE WHEN CFE_EDI.CODE_INSEE = @Destinataire THEN 1 ELSE 0 END
       ELSE CASE WHEN CFE_EDI.CODE_INSEE = PARTENAIRES.CODE_INSEE 
                AND cfe_edi.dathrmaj > @DateCmt AND cfe_edi.dathrmaj < @DateFin 
                AND CFE_EDI.GESTDEL = '1' THEN 1 ELSE 0 END  
       END = 1

我会尝试仅设置该特定参数以允许 ssrs 报告中存在空值，该报告可以作为参数设置窗口中的复选框找到。