Pentaho CDE嵌套sql查詢

Question

我們在pentaho CDE上設置了一個嵌套SQL查詢。 查詢：

select dataissue.value,count(value) as nbreticket,substring(issue.entry,1,3) 
from DataIssue,issue where field = 'version(s)_corrigée(s)' 
and dataissue.issue = issue.id and issue in (select issue 
from dataissue,issue where dataissue.issue = issue.id and value = 'récit' 
and substring(issue.entry,1,3) = 'ema') and issue in (select issue 
from dataissue,issue where dataissue.issue = issue.id and value = 'Fermée' 
and substring(issue.entry,1,3) = 'ema') and issue in (select issue 
from dataissue,issue where dataissue.issue = issue.id 
and field = 'point_d_effort' and substring(issue.entry,1,3) = 'ema') 
group by dataissue.value 

現在我們提出一個條形圖部件與查詢。

但條形圖中沒有結果。

是否Pentaho的CDE支持嵌套SQL查詢

Answer 1

Pentaho的CDE支持嵌套的SQL查詢。

SELECT SUBSTRING(issue.entry,1,3),dataissue.value,COUNT(VALUE) AS nbreticket 
FROM DataIssue,issue WHERE FIELD = 'version(s)_corrigée(s)' 
AND dataissue.issue = issue.id AND issue IN (SELECT issue 
FROM dataissue,issue WHERE dataissue.issue = issue.id AND VALUE = 'récit' 
AND SUBSTRING(issue.entry,1,3) = 'ema') AND issue IN (SELECT issue 
FROM dataissue,issue WHERE dataissue.issue = issue.id AND VALUE = 'Fermée' 
AND SUBSTRING(issue.entry,1,3) = 'ema') AND issue IN (SELECT issue 
FROM dataissue,issue WHERE dataissue.issue = issue.id 
AND FIELD = 'point_d_effort' AND SUBSTRING(issue.entry,1,3) = 'ema') 
GROUP BY dataissue.value 

你可以把這些sql和運行看看。

如果在條形圖中沒有結果。

=>您可以做一件事，轉到您的儀表板位置，意味着您將儀表板保存在哪個位置。

=>在這些位置CDA文件在那裏。選擇該CDA文件並點擊「在新窗口中打開」。在出現一個新窗口並選擇該查詢並查看結果是否顯示。

=>如果顯示結果，那麼在該sql中沒有問題。

謝謝..