创建报表，重复的报表输出，女士访问SQL

SELECT NMC.*, Exam.Final_Exam_Level 
FROM 
    (SELECT Technicians.Technician_ID AS Technician_ID, 
    Technicians.First_Name AS First_Name, 
    Technicians.Surname AS Surname, 
    MAX(New_Models.Date_Issued) AS Last_Course_Date, 
    MAX(New_Models.Issue) AS Last_Issue, 
    MAX(New_Models.Model_ID) AS Last_Model_ID, 
    Technicians.Course_Level AS No_Training_Courses 
    FROM New_Models, New_Models_Allocation, Technicians 
    WHERE New_Models.Model_ID=New_models_Allocation.Model_ID 
    And Technicians.Technician_ID=New_Models_Allocation.Technician_ID 
    GROUP BY Technicians.Technician_ID, Technicians.Course_Level, First_Name, Surname 
    ORDER BY MAX(New_Models.Model_ID) DESC) 
AS NMC 
INNER JOIN (SELECT Technicians.Technician_ID, COUNT(*) AS Final_Exam_Level 
    FROM Technicians, Exams, Exam_Allocation 
    WHERE (Technicians.Technician_ID)=Exam_Allocation.Technician_ID 
    And ((Exams.Exam_ID)=Exam_Allocation.Exam_ID) 
    And (Exams.Date_Taken)<=#12/31/2010# 
    GROUP BY Technicians.Technician_ID, Technicians.Course_Level 
    ORDER BY Technicians.Technician_ID) 
AS Exam ON Exam.Technician_ID=NMC.Technician_ID;

该查询显示每个技术员，最后一门考试，最后New_Model，最后一道菜。创建报表，重复的报表输出，女士访问SQL

SELECT Technicians.Technician_ID, Jobs.Job_ID, Jobs.Date_Occured, Fix 
FROM Technicians, Jobs, Tech_Allocation, Recovery 
WHERE Technicians.Technician_ID=Tech_Allocation.Technician_ID 
And Jobs.Job_ID=Tech_Allocation.Job_ID 
And Jobs.Job_ID=Recovery.Job_ID 
And Jobs.Date_Occured>=#1/1/2010# 
And Jobs.Date_Occured<=#12/31/2010# 
ORDER BY Fix;

此查询显示每个技术人员所做的工作。

但是，在Ms Access中创建报表时，作业会重复。因此，而不是技术人员完成3个工作，例如显示12个。虽然在运行第二个查询本身时，结果不会重复。

任何帮助？

来源

2011-05-02 Qatrelnada

（这与您的问题没有直接关系，但仍然可能是问题）。我看到为了捕获2010年的所有数据，你使用了'<＃12/31/2010＃'。但是，如果这些日期栏也存储时间部分，则排除午夜后发生在12/31/2010的所有事件。我建议使用'<＃01/01/2011＃'代替。合理？ – PowerUser 2011-05-03 12:46:20

出于显而易见的原因，我通常不会阅读其他人的SQL查询，但您的示例格式很好。这是问题吗？

INNER JOIN (SELECT Technicians.Technician_ID, COUNT(*) AS Final_Exam_Level 
    ... 
    GROUP BY Technicians.Technician_ID, Technicians.Course_Level

这两行来自第一个查询的第二个子查询。您有1个索引字段（Technician_ID），但有2个分组字段（Technician_ID和Course_Level）。这将产生如下结果：

Technician_ID Final_Exam_Level 
Bob   5 
Bob   4 
Nadine  5

我建议从Group By中删除Course_Level或将其添加到Select行中。

来源

2011-05-03 12:57:52 PowerUser

创建报表，重复的报表输出，女士访问SQL

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