交界处 table - 更换除外

Question

我有如下所示的关系，员工和培训，每个员工都可以参加任何培训，所以这是一个基本的 M:M 到 1:M M:1 东西。

我有一个 select 员工的组合框，我想要两个列表框来列出已完成的培训和可用的培训

像这样：

然后有两个按钮将 select 从一个列表框移动到另一个列表框并相应地更改记录。

我已查询以列出该员工参加的所有培训：

SELECT Training.Name, Training.Trainer, Training.Cost, Training.Type, Training.[Length(Day)]
FROM Training INNER JOIN Participation ON Training.[Training ID] = Participation.Training
WHERE (((Participation.Employee)=[Forms]![Add Training 2]![cboEmp]))
ORDER BY Training.Name;

我在 selecting 所有训练和过滤掉已经在 SQL 查询中 selected 的训练时遇到问题，上面的简单 EXCEPT 可以工作，但 ACCESS不支持。

这就是我想要的：

SELECT Training.Name, Training.Trainer, Training.Cost, Training.Type, Training.[Length(Day)]
FROM Training
EXCEPT
SELECT Training.Name, Training.Trainer, Training.Cost, Training.Type, Training.[Length(Day)]=
FROM Training INNER JOIN Participation ON Training.[Training ID] = Participation.Training
WHERE (((Participation.Employee)=[Forms]![Add Training 2]![cboEmp]))
ORDER BY Training.Name;

Answer 1

您可以只使用 not exists 或 not in:

SELECT Training.Name, Training.Trainer, Training.Cost, Training.Type, Training.[Length(Day)]
FROM Training
WHERE Training.TrainingId NOT IN (SELECT Participation.Training
                                  FROM Participation 
                                  WHERE Participation.Employee = [Forms]![Add Training 2]![cboEmp]
                                 )
ORDER BY Training.Name;

交界处 table - 更换除外

Junction table - EXCEPT replacement

mysql

ms-access

ms-access-2013