Question

我大概十年没用过Access了，所以我很抱歉这个简单易懂。我有三张桌子。表1 - 用户信息表2 - 报告信息表3 - 更正信息。

表2和表3通过表1链接在一起。（表2使用表1的id，表3使用表1的缩写名称）。

我需要有一个查询按日期计算每个用户的所有报告，并按用户按日期计算更正信息。

示例查询：

-user- | - 日期 - | -table 1 count- | -table 2 count -

用户1 | 08/01/2012 | 33报告| 2更正

用户2 | 08/01/2012 | 4份报告| 0更正

用户1 | 08/02/2012 | 0报告| 1更正

（零的意思是没有找到记录，但在另一个表中找到了该日期的一个记录）。

到目前为止，这是我对SQL的所有内容。

SELECT 
    tblUsers.userfullname, Count(txtReports.reportnumber) AS CountOfreportnumber,
    Count(tblRawData.reportnum) AS CountOfRawReport
FROM (tblUsers INNER JOIN txtReports ON tblUsers.userID = txtReports.userID) 
    INNER JOIN tblRawData ON tblUsers.userabbrev = tblRawData.username  
GROUP BY tblUsers.userfullname;

但它给我的全部是每列中相同总数的部分匹配。

任何指针？

更新：示例数据：向tblUsers：

userID,userfullname,userabbrev
850,Test ML,test-ml
817,Test RL,test-rl
872,Test LS,test-ls
1071,Test MF,test-mf
934,Test TF,test-tf
796,Test JK,test-jk
1073,TEST RA,test-ra
779,TEST AW,test-aw
852,TEST EP,test-ep
987,TEST MM,test-mm
938,TEST SS,test-ss
19,TEST MT,test-mt
1095,TEST JL,test-jl
780,TEST LN,test-ln
909,TEST JR,test-jr
290,TEST BY,test-by
892,TEST JC,test-jc
920,TEST TR,test-tr
894,TEST PW,test-pw
873,TEST JR,test-jr
827,TEST AC,test-ac
783,TEST RP,test-rp
829,TEST AP,test-ap

txtReports

userID,reportdate,reportnumber
850,8/13/2012,823
817,8/13/2012,835
872,8/13/2012,841
872,8/13/2012,842
872,8/13/2012,850
1071,8/13/2012,862
934,8/13/2012,863
796,8/13/2012,800
796,8/13/2012,803
1073,8/13/2012,804
1073,8/13/2012,808
1073,8/13/2012,809
1073,8/13/2012,815
1073,8/13/2012,816
796,8/13/2012,817
779,8/13/2012,818
779,8/13/2012,819
779,8/13/2012,820
779,8/13/2012,821
779,8/13/2012,822
850,8/13/2012,824
850,8/13/2012,826
850,8/13/2012,827
852,8/13/2012,829
852,8/13/2012,830
850,8/13/2012,831
817,8/13/2012,832
817,8/13/2012,833
987,8/13/2012,834
1095,8/13/2012,836
850,8/13/2012,837
872,8/13/2012,839
852,8/13/2012,840
987,8/13/2012,843
852,8/13/2012,845
852,8/13/2012,846
850,8/13/2012,847
817,8/13/2012,848
938,8/13/2012,849
817,8/13/2012,851
850,8/13/2012,853
817,8/13/2012,854
19,8/13/2012,855
780,8/13/2012,856
780,8/13/2012,857
909,8/13/2012,858
1071,8/13/2012,859
19,8/13/2012,860
909,8/13/2012,861
290,8/13/2012,838
892,8/13/2012,844
987,8/13/2012,852
892,8/14/2012,864
872,8/14/2012,866
892,8/14/2012,869
872,8/14/2012,870
872,8/14/2012,871
872,8/14/2012,872
934,8/14/2012,880
850,8/14/2012,865
850,8/14/2012,867
850,8/14/2012,868
1095,8/14/2012,873
850,8/14/2012,874
817,8/14/2012,875
850,8/14/2012,876
1095,8/14/2012,877
852,8/14/2012,881
852,8/14/2012,882
1095,8/14/2012,885
920,8/14/2012,919
920,8/14/2012,922
19,8/14/2012,879
872,8/14/2012,878
894,8/15/2012,884
873,8/15/2012,886
827,8/15/2012,889
796,8/15/2012,891
796,8/15/2012,892
796,8/15/2012,893
852,8/15/2012,883
852,8/15/2012,887
852,8/15/2012,888
873,8/15/2012,890
783,8/15/2012,895
783,8/15/2012,896
852,8/15/2012,902
808,8/15/2012,904
872,8/15/2012,914
872,8/15/2012,915

tblRawData

reportnum,username,reportdate
832,test-rl,08/13/12
837,test-mf,08/13/12
797,test-jk,08/13/12
811,test-ra,08/13/12
838,test-by,08/13/12
739,test-ra,08/13/12
817,test-jk,08/13/12
818,test-aw,08/13/12
819,test-aw,08/13/12
820,test-aw,08/13/12
821,test-aw,08/13/12
822,test-aw,08/13/12
852,test-mm,08/14/12
857,test-ln,08/14/12
753,test-ap,08/14/12
868,test-mf,08/14/12
745,test-ra,08/14/12
765,test-ra,08/14/12
748,test-ra,08/14/12
766,test-ra,08/14/12
794,test-ra,08/14/12
807,test-ra,08/14/12
812,test-ra,08/14/12
814,test-ra,08/14/12
815,test-ra,08/14/12
767,test-ra,08/14/12
768,test-ra,08/14/12
804,test-ra,08/14/12
873,test-jl,08/14/12
875,test-rl,08/14/12
837,test-mf,08/15/12
881,test-ep,08/15/12
883,test-ep,08/15/12
498,test-jr,08/15/12
887,test-ep,08/15/12
890,test-jr,08/15/12

通过添加按日期过滤来更新。

SELECT u.userfullname, nz(rd.rawcount,0) AS rawcount, nz(rp.rptcount,0) AS rptcount
FROM (tblUsers AS u LEFT JOIN (SELECT username, reportdate, count(reportnum) AS rawcount FROM tblRawData GROUP BY username, reportdate)  AS rd ON u.userabbrev = rd.username) LEFT JOIN (SELECT userID, reportdate, count(reportnumber) AS rptcount FROM txtReports GROUP BY userID, reportdate)  AS rp ON u.userID = rp.userID
WHERE (((rd.reportdate)>=[start date] And (rd.reportdate)<=[end date])) OR (((rp.reportdate)>=[start date] And (rp.reportdate)<=[end date]));

Answer 1

尝试：

SELECT tblUsers.userfullname, tr.CountReport, td.CountRaw
FROM (tblUsers 
LEFT JOIN (
    SELECT r.userID, Count(r.reportnumber) AS CountReport
    FROM txtReports r
    GROUP BY r.userID)  AS tr 
ON tblUsers.userID = tr.userID) 
LEFT JOIN (
    SELECT tblRawData.username, Count(tblRawData.reportnum) AS CountRaw
    FROM tblRawData
    GROUP BY tblRawData.username)  AS td 
ON tblUsers.userabbrev = td.username

Answer 2

你需要得到每张桌子的计数然后加入并显示它们，否则你会得到一个混乱的混乱，你的计数都没有。

SELECT u.userfullname, nz(rd.rawcount,0) AS rawcount, nz(rp.rptcount,0) AS rptcount 
FROM (tblUser AS u 
    LEFT JOIN (SELECT username, count(reportnum) AS rawcount FROM tblRawData GROUP BY username) AS rd 
    ON u.userabbrev = rd.username) 
    LEFT JOIN (SELECT userID, count(reportnumber) AS rptcount FROM txtReports GROUP BY userID) AS rp 
    ON u.userID = rp.userID
WHERE (Not p.Payments Is Null) OR (Not n.Notes Is Null);

Access 2007：从多个表计数的查询

2 个答案: