上次测试的子查询

时间:2013-11-15 09:31:51

标签: sql subquery

请有人帮我这个 环境:MS Access 2010,Windows 7 我想连接两个查询
1)特定项目中的活跃人士(她的9)
2)进行最后一次测试

添加1)

SELECT per.perNachname,
       per.perMitgliedsnummer,
       prm.prmID,
       tei.teiangIDRef,
       tei.teiperIDRef,
       prm.prmpdaIDRef,
       prm.prmdegIDRef
FROM ( tblPersonen AS per
       RIGHT JOIN tblTeilnahmen AS tei 
       ON 
       (per.perMitgliedsnummer=tei.teiperIDRef 
        AND  tei.teiangIDRef = 9)
      )
       LEFT JOIN 
       tblPromotionTest  AS prm
       ON 
       prm.prmperIDRef=per.perMitgliedsnummer

这有效,但我看到很多行而不是这个我想看到每个人只有最后一次测试的行或者右边没有任何东西,如果这个人没有通过任何测试。 >>>这个想法类似于tblPERSON LEFT JOIN tblTEST<<<

添加2)

SELECT p.prmperIDRef,
       p.prmID,
       p.prmpdaIDRef,
       p.prmdegIDRef
FROM tblPromotionTest AS p 
     LEFT JOIN tblPromotionTest AS p2 
     ON (p.prmID < p2.prmID) 
     AND (p.prmperIDRef=p2.prmperIDRef)
     WHERE p2.prmperIDRef Is Null

提前感谢您的支持 亲切的问候Bernhard

我发现以下规避:

SELECT per.perNachname, per.perVorname, per.perMitgliedsnummer, prm.prmID, prm.prmpdaIDRef, prm.prmdegIDRef

FROM tblPersonen AS per LEFT JOIN tblPromotionTest AS prm ON per.perMitgliedsnummer = prm.prmperIDRef

WHERE prm.prmID IN (
SELECT p.prmID
FROM tblPromotionTest AS p LEFT JOIN tblPromotionTest AS p2 ON (p.prmID < p2.prmID) AND (p.prmperIDRef=p2.prmperIDRef)
WHERE p2.prmperIDRef Is Null)

AND per.perMitgliedsnummer IN 

(
SELECT tei.teiperIDRef
FROM tblPersonen AS per INNER JOIN tblTeilnahmen AS tei ON per.perMitgliedsnummer = tei.teiperIDRef
WHERE (((tei.teiangIDRef)=9))
)

UNION SELECT per.perNachname, per.perVorname, per.perMitgliedsnummer,  prm.prmID, prm.prmpdaIDRef, prm.prmdegIDRef
FROM tblPersonen AS per LEFT JOIN tblPromotionTest AS prm ON per.perMitgliedsnummer = prm.prmperIDRef
WHERE prm.prmID Is Null and per.perMitgliedsnummer IN (SELECT tei.teiperIDRef
FROM tblTeilnahmen as tei
WHERE tei.teiangIDRef=9);

0 个答案:

没有答案