Sql 将两个内部联接查询合并到一个过程中

我正在尝试将上述两个过程合并为一个过程

请任何人帮助我，我正在获取

us.MxitId

列的重复值。

        SELECT TOP 15
      us.MxitId AS TransactionCreatedBy, COUNT(t.CreatedBy) Total
FROM [User] us
INNER JOIN [Transaction] t ON t.CreatedBy = us.UserId
Where ChildGender = 'Male'
GROUP BY us.MxitId, t.ChildGender 
ORDER BY 2 desc





SELECT TOP 15
      us.MxitId AS TransactionCreatedBy, COUNT(t.CreatedBy) Total
FROM [User] us
INNER JOIN [Transaction] t ON t.CreatedBy = us.UserId
Where ChildGender = 'Female'
GROUP BY us.MxitId, t.ChildGender 
ORDER BY 2 desc

---

此查询应可用于获取性别计数，而无需重复的MxitId

 SELECT TOP 15
      us.MxitId AS TransactionCreatedBy, 
    sum(case when ChildGender = 'Male' then 1 else 0 end) TotalMale
      ,sum(case when ChildGender = 'feMale' then 1 else 0 end) TotalFeMale
FROM [User] us
INNER JOIN [Transaction] t ON t.CreatedBy = us.UserId

GROUP BY us.MxitId, t.ChildGender 

---

您可以使用

行号（）执行此操作。

：

写为：

      SELECT us.MxitId as TransactionCreatedBy, COUNT(t.CreatedBy) as Total,
             sum(case when t.ChildGender = 'Male' then 1 else 0 end) as TotalMales,
             sum(case when t.ChildGender = 'Female' then 1 else 0 end) as TotalFemales
      FROM [User] us INNER JOIN
           [Transaction] t
           ON t.CreatedBy = us.UserId
      GROUP BY us.MxitId, t.ChildGender 
      ORDER BY COUNT(t.CreatedBy) desc
      LIMIT 15;

---

您想如何组合它们？男孩的前15名用户可能与女孩的前15名用户完全不同。或者，它们可以是相同的列表，但顺序不同。向我们展示您希望输出的样子。您好，这两种情况下的用户都是相同的。如果用户没有记录任何女性数据，我想说0，反之亦然，MSG 102，15级，状态1，第3行“'）附近的语法不正确。Msg 102，15级，状态1，第3行“TotalMale”附近语法不正确。Msg 102，第15级，状态1，第4行“TotalFeMale”附近的语法不正确。请将end放在括号内。数据仍在重复。我不知道表结构及其关系。在键入之前，它在该注释框中表示：请避免像+1这样的注释，谢谢..-）

SELECT TOP 15
      us.MxitId AS TransactionCreatedBy
, COUNT(t.CreatedBy) AS Total
, SUM(CASE WHEN ChildGender = 'Female' THEN 1 ELSE 0 END) AS FemaleCount
, SUM(CASE WHEN ChildGender = 'Male' THEN 1 ELSE 0 END) AS MaleCount
FROM [User] us
INNER JOIN [Transaction] t ON t.CreatedBy = us.UserId
GROUP BY us.MxitId
ORDER BY 2 desc

SELECT TransactionCreatedBy, ChildGender, Total
FROM (SELECT us.MxitId as TransactionCreatedBy, t.ChildGender, COUNT(t.CreatedBy) as Total,
             row_number() over (partition by t.ChildGender order by COUNT(t.CreatedBy) desc
                               ) as seqnum
      FROM [User] us INNER JOIN
           [Transaction] t
           ON t.CreatedBy = us.UserId
      GROUP BY us.MxitId, t.ChildGender 
     ) t
WHERE seqnum <= 15
ORDER BY Total desc;

      SELECT us.MxitId as TransactionCreatedBy, COUNT(t.CreatedBy) as Total,
             sum(case when t.ChildGender = 'Male' then 1 else 0 end) as TotalMales,
             sum(case when t.ChildGender = 'Female' then 1 else 0 end) as TotalFemales
      FROM [User] us INNER JOIN
           [Transaction] t
           ON t.CreatedBy = us.UserId
      GROUP BY us.MxitId, t.ChildGender 
      ORDER BY COUNT(t.CreatedBy) desc
      LIMIT 15;

select top 15 us.MxitId AS TransactionCreatedBy,
        count(case ChildGender when 'Male' then 1 else null end) as MaleCount,
        count(case ChildGender when 'Female' then 1 else null end) as FemaleCount
from [User] us
INNER JOIN [Transaction] t ON t.CreatedBy = us.UserId
GROUP BY us.MxitId