从 Select 语句创建一个新列，然后在一个过程中将其与另一个 Select 语句组合以返回一个数据表

Question

我想对 SQL 表 Archive_Hits 中的数据进行计数，并创建一个列 programStarts 来显示该数据。然后我想把programStarts列和另一个Select语句结合起来显示一个数据表。

这是我的程序：

ALTER PROCEDURE [dbo].[testing2] @startdate datetime, @enddate datetime
AS
BEGIN

SELECT Archive_Hits.inst_id, Count(Archive_Hits.type) AS programStarts 
FROM Archive_Hits 
WHERE Archive_Hits.type<>'New' AND Archive_Hits.accessed_on BETWEEN  cast ( @startdate as date)  and cast ( @enddate as date)
GROUP BY Archive_Hits.inst_id


SELECT email,product_market,install_code, programStarts
FROM (Archive_ProgUsers INNER JOIN Archive_Installations ON Archive_ProgUsers.id = Archive_Installations.user_id) 
INNER JOIN Archive_Hits AS hitsCount ON hitsCount.inst_id = Archive_Installations.id
ORDER BY programStarts DESC

请注意，我尝试使用 UNION 和 UNION ALL 方法，但如果我在每个语句中没有相同数量的列，这将不起作用。

另外，第二个 select 语句返回错误，因为它无法识别第一个 Select 语句中新创建的列。

=============================== 这是一个示例结果表结果

Answer 1

您需要提供示例数据，但我认为这是您需要的：

SELECT
    email,
    product_market,
    install_code,
    Count(case when hitsCount.type <> 'New' and hitsCount.accessed_on BETWEEN cast(@startdate as date) and cast(@enddate as date) then 1 end) over (partition by inst_id) as programStarts
FROM Archive_ProgUsers
INNER JOIN Archive_Installations ON Archive_ProgUsers.id = Archive_Installations.user_id
INNER JOIN Archive_Hits AS hitsCount ON hitsCount.inst_id = Archive_Installations.id
ORDER BY programStarts DESC

好的，那么你需要这个：

SELECT
    email,
    product_market,
    install_code,
    programStarts
FROM Archive_ProgUsers
INNER JOIN Archive_Installations ON Archive_ProgUsers.id = Archive_Installations.user_id
INNER JOIN (
    SELECT inst_id 
        , Count(case when hitsCount.type <> 'New' and hitsCount.accessed_on BETWEEN cast(@startdate as date) and cast(@enddate as date) then 1 end) as programStarts
    From Archive_Hits
    GROUP BY Archive_Hits.inst_id 
) AS hitsCount ON hitsCount.inst_id = Archive_Installations.id
ORDER BY programStarts DESC