Sql 如何使用表单输入作为查询参数

目前，它使用classID的用户参数，但我希望它是从一个特定的表单“Forms！[ClassRegistration]！[txt\U classID]”中获取的。

我相信这可能就是您所指的：

SELECT MemberID 
FROM tbl_member 
WHERE MemberID NOT IN (SELECT DISTINCT tbl_classregistration.MemberID
                       FROM tbl_member 
                       INNER JOIN (tbl_classes 
                       INNER JOIN tbl_classregistration ON tbl_classes.ClassID = tbl_classregistration.ClassID) ON tbl_member.MemberID = tbl_classregistration.MemberID
                       GROUP BY tbl_classregistration.ClassID, tbl_classregistration.MemberID
                       HAVING (((tbl_classregistration.ClassID) = [Enter ClassID])))

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请提供更多详细信息，问题不清楚，我只需要它使用一个表单的输入，这是我的班级登记表，以输入作为参数，而不是必须输入ClassID

select MemberID from tbl_member where MemberID not in (SELECT DISTINCT tbl_classregistration.MemberID
FROM tbl_member INNER JOIN (tbl_classes INNER JOIN tbl_classregistration ON tbl_classes.ClassID = tbl_classregistration.ClassID) ON tbl_member.MemberID = tbl_classregistration.MemberID
GROUP BY tbl_classregistration.ClassID, tbl_classregistration.MemberID
HAVING (((tbl_classregistration.ClassID)=[Forms]![ClassRegistration]![txt_classid])))