MS Access 2016 查询范围与每天的平均值

Question

我想在 Microsoft Access 2016 中进行查询，显示每天的范围（最大值 - 最小值）与平均值。

我已经完成了一个查询，显示“16-Jun-16”和“17-Jun-16”之间所有记录的结果：

SELECT [Date Time], [Operation Grade-Load], [MFR g/10min]
FROM [In process analysis result]
WHERE ([Date Time] Between Date()-360 And Date()-358)
AND ([Operation Grade-Load] Like "MH*");

但是，我不知道如何继续修改我的查询以显示每天的“范围”和“平均值”。我想我应该使用 Avg(), Max()-Min() 函数。有人可以指导我吗？

编辑： 每天是根据 [前一天 02:00:00] 和 [今天 02:00:00] 之间计算的。 示例：

• 16-Jun-16 = “16-Jun-16 02:00:00”和“17-Jun-16”之间的行记录 02:00:00"
• 17-Jun-16 = “17-Jun-16 02:00:00”和 "18-Jun-16 02:00:00"
• ...

甚至可以根据这个逻辑计算日期吗？

感谢任何帮助。 谢谢。

编辑 1： 我更新了我的 SQL 查询：

SELECT [Date Time], [Range], [Average]
FROM [In process analysis result], (SELECT Max([MFR g/10min])-Min([MFR g/10min]) AS [Range], Avg([MFR g/10min]) AS Average
FROM [In process analysis result]
WHERE ((([In process analysis result].[Date Time]) Between Date()-360 And Date()-358) AND (([In process analysis result].[Operation Grade-Load]) Like "MH*"))
)  AS [%$##@_Alias]
WHERE ((([In process analysis result].[Date Time]) Between Date()-360 And Date()-358) AND (([In process analysis result].[Operation Grade-Load]) Like "MH*"))
ORDER BY [In process analysis result].[Date Time];

事实证明它已经足够接近我想要的了......但还没有，因为它不是基于每天计算的。

编辑 2： 这是预期的结果：

编辑 3： 在@USeptim 之后，这是创建的查询的结果。但是，它会使用 [Range] 和 [PromedioDeMFR g/10min] 创建另外两列。

Answer 1

你可以这样做：

SELECT [In process analysis result].[Date Time], [In process analysis 
result].[MFR g/10min], QueryAux.Range, QueryAux.[PromedioDeMFR g/10min]
FROM [In process analysis result] INNER JOIN 
(SELECT Max([MFR g/10min])-Min([MFR g/10min]) AS Range, Avg([In process 
analysis result].[MFR g/10min]) AS [PromedioDeMFR g/10min], [In process 
analysis result].[Date Time], [In process analysis result].[Operation Grade-
Load]
FROM [In process analysis result]
GROUP BY [In process analysis result].[Date Time], [In process analysis 
result].[Operation Grade-Load]) QueryAux 
ON ([In process analysis result].[Operation Grade-Load] = QueryAux.
[Operation Grade-Load]) AND ([In process analysis result].[Date Time] = 
QueryAux.[Date Time])
WHERE ((([In process analysis result].[Date Time]) Between Date()-360 And 
Date()-358) AND (([In process analysis result].[Operation Grade-Load]) Like 
"MH*"))
ORDER BY [In process analysis result].[Date Time];

您可以使用我称为“查询辅助”的子查询创建一个查询并直接引用它。