将两个查询连接到表中的列中

Question

我需要帮助修改下面的查询。我正在尝试创建一个这样的表：

| Jan 2014 | Feb 2014 |
|   7.5    |    8     |

但我最终得到了这个：

| Jan 2014 |
|   7.5    |
|     8    |

有没有办法将这两个（可能更多）查询连接到列而不是行？我顺便使用MS Access。提前谢谢。

我当前的查询：

SELECT * FROM
(SELECT AVG([Length of Service in Years including Partial Year]) AS Jan2014 
 FROM [January 2014 HC] AS A) 
UNION ALL 
(SELECT AVG([Length of Service in Years including Partial Year]) AS Feb2014 
 FROM [February 2014 HC] AS B)

感谢NoDisplayName的回答，我想我明白了！

编辑：

 SELECT * FROM
 (SELECT AVG([Length of Service in Years including Partial Year])
 FROM [January 2014 HC] AS A) AS Jan2014, 
 (SELECT AVG([Length of Service in Years including Partial Year]) 
 FROM [February 2014 HC] AS B) AS Feb2014

Answer 1

由于两个查询只返回一行，你可以这样做。

select 
(SELECT AVG([Length of Service in Years including Partial Year]) 
 FROM [January 2014 HC]) AS Jan2014 , 
(SELECT AVG([Length of Service in Years including Partial Year]) 
 FROM [February 2014 HC]) AS Feb2014