从Access 2007中的多个表中选择COUNT个

Question

我有2个查询，分别称为“ 3个月查询”和“ 6个月查询”。 现在，我将创建一个以查询作为记录源的报告。 我想计算3个月查询中的行数并将其标记为Need3Month，并将6个月查询中的行数标记为Need6Month。 我尝试了以下不起作用的方法：

SELECT COUNT([3 Month Query].[ID]) AS Need3Month, COUNT([6 Month Query].[ID]) AS Need6Month FROM [3 Month Query], [6 Month Query];

我也尝试过：

SELECT COUNT([3 Month Query].[ID] AS Need3Month FROM [3 Month Query]
UNION
SELECT COUNT([6 Month Query].[ID] AS Need6Month FROM [6 Month Query];

这将返回正确的数字，但同时在Need3Month列下列出它们。

我应该做些什么？ 任何帮助深表感谢。

Answer 1

SELECT
  (SELECT COUNT([ID]) FROM [3 Month Query]) AS Need3Month,
  (SELECT COUNT([ID]) FROM [6 Month Query]) AS Need6Month

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更新以回复评论：

SELECT
  COUNT([ID]) AS Need3Month,
  (SELECT COUNT([ID]) FROM [6 Month Query]) AS Need6Month
FROM [3 Month Query]

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更新2

这也应该工作（我认为）：

SELECT
  Cnt6.Cnt AS Need3Month,
  Cnt3.Cnt AS Need3Month
FROM
  (SELECT COUNT([ID]) AS Cnt FROM [3 Month Query]) AS Cnt3,
  (SELECT COUNT([ID]) AS Cnt FROM [6 Month Query]) AS Cnt6

Answer 2

不知道它是否可以在MS Access中使用，但是在SQL中您可以执行以下操作：

SELECT 
    (SELECT COUNT(ID) FROM [3 Month Query]) Need3Month, 
    (SELECT COUNT(ID) FROM [6 Month Query]) Need6Month