Question

我想显示目标已达到或未达到类别明智，我没有在提交的链接列中获得正确的计数，提交的链接计数出错了。结果是没有分配的类别。实际提交的链接15.但它显示15 * 4，即60

我的样本数据

   select CatId,DayName,DayTarget,ProjectID from Tbl_DaySubmission where ProjectID='3'and DayName='FRIDAY' 

CatId   DayName DayTarget   ProjectID
35      Friday   5            3
3       Friday   4            3
6       Friday   5            3
2       Friday   15           3


select LinkId,LnkSubmsnDate,LnkSubmtdBy,ProjectId,CategoryId from tbl_Link where LnkSubmsnDate='2015-10-09'

LinkId  LnkSubmsnDate   LnkSubmtdBy ProjectId   CategoryId
147950   2015-10-09       swapna       3          2
147951   2015-10-09       swapna       3          2
147952   2015-10-09       swapna       3          2
147953   2015-10-09       swapna       3          2
147954   2015-10-09       swapna       3          2
147955   2015-10-09       swapna       3          2
147956   2015-10-09       swapna       3          2
147957   2015-10-09       swapna       3          2
147958   2015-10-09       swapna       3          2
147959   2015-10-09       swapna       3          2
147960   2015-10-09       swapna       3          2
147961   2015-10-09       swapna       3          2
147962   2015-10-09       swapna       3          2
147963   2015-10-09       swapna       3          2
147964   2015-10-09       swapna       3          2
147965   2015-10-09       swapna       3          35

我的查询

   SELECT
c.Categoryname
, ds.DayTarget 
, CASE WHEN (COUNT(LinkId) > 0) THEN l.LnkSubmsnDate
ELSE NULL END AS [LnkSubmsnDate]
, CASE WHEN (COUNT(LinkId) > 0) THEN l.LnkSubmtdBy
ELSE NULL END AS [LnkSubmtdBy]
, COUNT(LinkId) AS submittedLinks
, (CASE
  WHEN DayTarget=COUNT(LinkId)     THEN 'Reached'  
  WHEN DayTarget-COUNT(LinkId)   < 1  THEN 'Reached' 
  WHEN DayTarget-COUNT(LinkId)  >= 1 THEN 'Not Reached' 
END ) AS performance
FROM tbl_Category AS c
INNER JOIN Tbl_DaySubmission AS ds ON ds.CatId = c.CategoryId
LEFT JOIN (SELECT * FROM tbl_Link WHERE LnkSubmsnDate='2015-10-12' and ProjectId='109' and LnkSubmtdBy='swapna') AS l ON l.ProjectId = ds.ProjectID AND l.CategoryId = ds.CatId
WHERE ds.ProjectID = 109
GROUP BY c.Categoryname, ds.DayTarget, l.LnkSubmsnDate, l.LnkSubmtdBy
ORDER BY l.LnkSubmtdBy

我需要这样的输出

Categoryname    DayTarget   LnkSubmsnDate   LnkSubmtdBy submittedLinks  performance
Classifieds        15          2015-10-09   swapna        15             Reached
BlogCommenting     5           2015-10-09   swapna        1            Not Reached
ForumSites         4                                                   Not Reached
Directorysites     5                                                   Not Reached

Answer 1

当你加入tbl_Category和Tbl_DaySubmission以及tbl_Link时，你很可能会多次计算一些ID。

我想在您想要计算关联链接的情况下，您可以简单地替换

COUNT(LinkId)

与

COUNT(DISTINCT LinkId)

获取正确的号码。

sql查询中出现的结果和计数不正确

1 个答案: