MS ACCESS SQL如何聯盟與組通過顯示總計

Question

我有一個查詢，我想分組顯示每個值的數量在一個字段中的數量，並希望聯合第二個查詢應該顯示總計和所有項目的計數。這是我的查詢的摘要。

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 ? 

什麼是想是這樣的：
場伯爵=========計數
值1 ================值1的計數
Value2 ================值的計數2
Value3 ================計數值3
「Grand Total」 =========所有字段的計數值

我知道，沒有Group By在第二個查詢中它不會顯示任何東西，所以我知道我需要使用它。基本上像「分組*」

有什麼建議嗎？

Answer 1

我不確定在第二個查詢中是否需要GROUP BY，或者如果這樣做更有意義。相反，只需選擇總表計數：

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，我加了一個計算列pos在UNION每個子查詢可以訂購總計最後。請注意，在外部查詢中，我實際上並未選擇pos，因爲我們不希望它在結果集中，我們只希望它用於排序。

Answer 2

減少添的一點是外選擇不需要：

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