SQL Server 2008：选择具有最大重复值的列名

问题描述

|| 我试图选择一个字段的名称，该字段最经常出现在表中并且其中某个值是true。

Select
      Max(Count(Name))
From
      EmployeeTreats
Where
      Donut = \"Yes\"
      And
      AmountEaten >= 10

  错误：无法执行汇总   对包含   集合或子查询。 我要寻找的显然是这样的：

Edward has eaten the most with a sum total of 45

Name 
Edward

    

解决方法

        这将处理多个相同名称的名称的情况。

select Name,count(*)
from ExployeeTreats
where  Donut = \"Yes\" and AmountEaten >= 10
group by Name
having count(*) >= ALL ( select count(*)
                         from EmployeeTreats
                         where Donut = \"Yes\" and AmountEaten >= 30
                         group by Name )

    ,        根据您最初的问题：

select top (1)
      [Name],count(1) as Cnt
from Employees
where Donut = \'yes\'
  and AmountEaten >= 10
group by [Name]
order by Cnt desc;

编辑后：

select top (1)
      [Name],sum(AmountEaten) as TotalEaten
from Employees
where Donut = \'yes\'
group by [Name]
order by TotalEaten desc;

    ,        诀窍是按名称分组。然后按count（*）降序排列，并剪掉顶部的1。

select top 1 max(name)
  from employeeTreats
 where donut=\'Yes\'
   and amountEaten >= 10
 group by name
 order by count(*) desc