MS ACCESS SQL如何联盟与组通过显示总计

Question

我有一个查询，我想分组显示每个值的数量在一个字段中的数量，并希望联合第二个查询应该显示总计和所有项目的计数。这是我的查询的摘要。

SELECT a.[Field to Count], Count(a.[Field to Count]) as Count 
FROM MyTable as a 
Where a.[Some Field] = "Value1" AND a.[Some other Field] <> "Some value" 
Group By a.[Field to Count] 
UNION 
SELECT "Grand Total", Count(*) 
FROM MyTable as a 
Where a.[Some Field] = "Value1" AND a.[Some other Field] <> "Some value" 
Group By ? 

什么是想是这样的：
场伯爵=========计数
值1 ================值1的计数
Value2 ================值的计数2
Value3 ================计数值3
“Grand Total” =========所有字段的计数值

我知道，没有Group By在第二个查询中它不会显示任何东西，所以我知道我需要使用它。基本上像“分组*”

有什么建议吗？

Answer 1

我不确定在第二个查询中是否需要GROUP BY，或者如果这样做更有意义。相反，只需选择总表计数：

SELECT t.label, t.count 
FROM 
(
    SELECT a.[Field to Count] AS label, 
      COUNT(*) AS count, 
      0 AS pos 
    FROM MyTable as a 
    WHERE a.[Some Field] = "Value1" AND a.[Some other Field] <> "Some value" 
    GROUP BY a.[Field to Count] 
    UNION 
    SELECT "Grand Total" AS label, 
      COUNT(*) AS count, 
      1 AS pos 
    FROM MyTable as a 
    WHERE a.[Some Field] = "Value1" AND a.[Some other Field] <> "Some value" 
) t 
ORDER BY t.pos, t.label 

注意，我加了一个计算列pos在UNION每个子查询可以订购总计最后。请注意，在外部查询中，我实际上并未选择pos，因为我们不希望它在结果集中，我们只希望它用于排序。

Answer 2

减少添的一点是外选择不需要：

SELECT a.[Field to Count] AS label, 
     COUNT(*) AS [count], 
     0 AS pos 
FROM MyTable as a 
WHERE a.[Some Field] = "Value1" AND a.[Some other Field] <> "Some value" 
GROUP BY a.[Field to Count] 
UNION 
SELECT "Grand Total" AS label, 
     COUNT(*) AS [count], 
     1 AS pos 
FROM MyTable as a 
WHERE a.[Some Field] = "Value1" AND a.[Some other Field] <> "Some value" 
ORDER BY 2, 1