在SSRS SQL查询中限制结果

Question

我正在尝试使用SSRS在我们的票务系统上生成报告。我正在从“事件机构”表和“事件详细信息”表中引入字段。我在寻找的是该票是否已经滑过SLA以回应客户。

我检查买票过去SLA两种方式：

1）门票是过去的SLA日期并没有相匹配的预定类型
2）票有详细记录相匹配的预定详细记录类型，但它是在SLA日期之后

我能够在下面构建CTE部分，但我正在努力如何将结果减少到最早的匹配行/记录。一张票只能在报告中显示一次。

例如：

约翰尼更新博客上使用2016年1月1日的CONTACTED_TM RECORDTYPE票。 SLA是12/31/2015。第二天（1/2/2016）他还使用EMAILOUT记录类型向TM发送电子邮件。 CTE返回这两行/记录。我只想要第一个结果。

我的查询代码如下。我曾尝试在CTE中使用SELECT TOP 1，但它只是导致它无法返回结果。

WITH CTE (Date, [Action ID], Description, Note, [Login ID], [Seq.Group], [Incident #], ResponseDue) AS 
(
SELECT Date, [Action ID], [Incident Details].Description, [Incident Details].Note, [Login ID], [Incident Details].[Seq.Group], [Incident Details].[Incident #], [Incident].[Due Date & Time:] as ResponseDue 
FROM [_SMDBA_].[Incident Details] 
JOIN [_SMDBA_].[Incident] 
ON [Incident Details].[Incident #] = [Incident].[Incident #] 
WHERE ([Action ID] = 'CONTACTED_TM' OR [Action ID] = 'TM_UNAVAILABLE' OR ([Action ID] = N'EMAILOUT' AND _SMDBA_.[Incident].[Client Email] in ([Email To Email From]))) 
--AND Date >= Incident.[Due Date & Time:] 
) 

SELECT 
I.[Incident #] 
,I.[Group Name] 
,I.[Seq.Group] as IncidentGroupSeq 
,I.[Due Date & Time:] as ResponseDue 
,I.[Priority ID:] 
,I.[Priority Duration] 
,I.[Subject ID] 
,I.[Open Date & Time] as OpenDate 
,I.[Impact ID:] as Impact 
,I.[Urgency ID:] as Urgency 

,CTE.[Action ID] 
,CTE.Description 
,CTE.Note 
,CTE.[Login ID] 
,CTE.Date AS IncidentDetailsDate 
,CTE.[Seq.Group] as DetailsGroupSeq 

,_SMDBA_.CalcWorkingSeconds(1001,[Due Date & Time:],CTE.Date) as WorkingSecs 

,CASE 
     WHEN CTE.date >= I.[Due Date & Time:] THEN 'Response was Late' 
      WHEN CTE.Date IS NULL THEN 'There was no response' 
      WHEN CTE.date <= I.[Due Date & Time:] THEN 'Met SLA' 
      WHEN I.[Due Date & Time:] IS NULL THEN 'No Response date set' 
     END AS SLAStatus 

FROM [_SMDBA_].Incident I 
LEFT OUTER JOIN CTE 
ON CTE.[Incident #] = I.[Incident #] 
WHERE 
I.[Open Date & Time] >= @StartDate 
AND I.[Open Date & Time] <= @EndDate 
AND I.[Group Name] in (@Group) 
AND I.[Impact ID:] in (@Impact) 
AND I.[Urgency ID:] in (@Urgency) 
AND I.[Opened Group:] = 'SERVICE DESK' 

Answer 1

就像这样，在评论中引用。

WITH CTE ([Date], [Action ID], Description, Note, [Login ID], [Seq.Group], [Incident #], ResponseDue) AS 
(
    SELECT 
     [Date], 
     [Action ID], 
     [Incident Details].Description, 
     [Incident Details].Note, 
     [Login ID], 
     [Incident Details].[Seq.Group], 
     [Incident Details].[Incident #], 
     [Incident].[Due Date & Time:] as ResponseDue, 
     row_number() over (partition by [Incident Details].[Incident #] order by [Date] desc) as RN 
    FROM [_SMDBA_].[Incident Details] 
     JOIN 
      [_SMDBA_].[Incident] 
      ON [Incident Details].[Incident #] = [Incident].[Incident #] 
    WHERE 
     ([Action ID] = 'CONTACTED_TM' OR [Action ID] = 'TM_UNAVAILABLE' OR 
     ([Action ID] = N'EMAILOUT' AND _SMDBA_.[Incident].[Client Email] in ([Email To Email From]))) 
--AND Date >= Incident.[Due Date & Time:] 
) 

SELECT 
I.[Incident #] 
,I.[Group Name] 
,I.[Seq.Group] as IncidentGroupSeq 
,I.[Due Date & Time:] as ResponseDue 
,I.[Priority ID:] 
,I.[Priority Duration] 
,I.[Subject ID] 
,I.[Open Date & Time] as OpenDate 
,I.[Impact ID:] as Impact 
,I.[Urgency ID:] as Urgency 

,CTE.[Action ID] 
,CTE.Description 
,CTE.Note 
,CTE.[Login ID] 
,CTE.Date AS IncidentDetailsDate 
,CTE.[Seq.Group] as DetailsGroupSeq 

,_SMDBA_.CalcWorkingSeconds(1001,[Due Date & Time:],CTE.Date) as WorkingSecs 

,CASE 
     WHEN CTE.date >= I.[Due Date & Time:] THEN 'Response was Late' 
      WHEN CTE.Date IS NULL THEN 'There was no response' 
      WHEN CTE.date <= I.[Due Date & Time:] THEN 'Met SLA' 
      WHEN I.[Due Date & Time:] IS NULL THEN 'No Response date set' 
     END AS SLAStatus 

FROM [_SMDBA_].Incident I 
LEFT OUTER JOIN CTE 
ON CTE.[Incident #] = I.[Incident #] 
WHERE 
I.[Open Date & Time] >= @StartDate 
AND I.[Open Date & Time] <= @EndDate 
AND I.[Group Name] in (@Group) 
AND I.[Impact ID:] in (@Impact) 
AND I.[Urgency ID:] in (@Urgency) 
AND I.[Opened Group:] = 'SERVICE DESK' 
AND CTE.RN = 1