需要包裹查询计数结果

Question

我有这个疑问：

SELECT 
[QUERY1].[py], 
[QUERY1].[al], 
[QUERY1].[ga], 
[QUERY1].[sy], 
[QUERY1].[pl] 
FROM [tab-Sample] as QUERY1, [tab-Sample] 
WHERE [tab-Sample].[py] = [QUERY1].[py] AND 
[tab-Sample].[al] <> [QUERY1].[al] 

我想编写仅仅指刚计数这一结果的查询，我无法找到要插入COUNT（*）也用Over（）尝试，但我无法管理这个。

Answer 1

将所有内容都作为FROM中的子选项进行包装。请确保您将其命名（Total）。

COUNT (*) AS Amount FROM 
(
SELECT 
[QUERY1].[py], 
[QUERY1].[al], 
[QUERY1].[ga], 
[QUERY1].[sy], 
[QUERY1].[pl] 
FROM [tab-Sample] as QUERY1, [tab-Sample] 
WHERE [tab-Sample].[py] = [QUERY1].[py] AND 
[tab-Sample].[al] <> [QUERY1].[al] 
) Total