Sql Server分组依据，计数查询

我有以下疑问

select COUNT(mc_owner) as nbr , mc_owner
from [dbo].[full] 
where (date_reception > '01-01-2015')
group by (mc_owner)
order by nbr desc

这让我明白了

• 20000元素1
• 10000元素2
• 10000元素3
• 10000元素4

我只需要有两个结果element1和其他分组在on元素中 差不多

• 要素1 20000
• 其他30000

---

感谢您的帮助

您使用的是一个

大小写

表达式，如下所示：

SELECT
    COUNT(*) as nbr,
    CASE mc_owner WHEN 'Element1' THEN 'Element1' ELSE `Others` END as Owner
FROM [dbo].[full] 
WHERE (date_reception > '01-01-2015')
GROUP BY CASE mc_owner WHEN 'Element1' THEN 'Element1' ELSE `Others` END
ORDER BY COUNT(*) DESC

---

其思想是提供一个表达式，根据

mc_owner

字段的值，该表达式计算为您需要的两个值之一，即

'Element1'

或

其他值

SELECT
    COUNT(*) as nbr,
    CASE mc_owner WHEN 'Element1' THEN 'Element1' ELSE `Others` END as Owner
FROM [dbo].[full] 
WHERE (date_reception > '01-01-2015')
GROUP BY CASE mc_owner WHEN 'Element1' THEN 'Element1' ELSE `Others` END
ORDER BY COUNT(*) DESC

declare   @tt table(name varchar(10),id int)

insert into @tt(name,id)values ('element1',2000)
insert into @tt(name,id)values ('element2',2000)
insert into @tt(name,id)values ('element3',2000)
insert into @tt(name,id)values ('element4',2000)


;WITH CTE AS
(
select ROW_NUMBER()OVER(Partition by ID ORDER BY ID,name) RN, * from @tt 

)
select NAME,ID from CTE
where RN = 1
UNION ALL
select 'Others' as NAME,SUM(id) as ID 
from CTE
where RN >1

其思想是提供一个表达式，根据
mcu owner
字段的值，该表达式计算为您需要的两个值之一，即
'Element1'
或
其他值。
这些结果与查询不匹配（将计数放在第一位）。在我们尝试回答之前，请使您的问题自我一致。并定义定义定义行在“其他”下分组的条件。这不是我只想简化的实际结果。谢谢您的回复。这些结果与查询不匹配（将计数放在第一位）。在我们尝试回答之前，请使您的问题自我一致。同时定义定义行在“其他”下分组的标准。这不是我只想简化的实际结果。谢谢您的回复
declare   @tt table(name varchar(10),id int)

insert into @tt(name,id)values ('element1',2000)
insert into @tt(name,id)values ('element2',2000)
insert into @tt(name,id)values ('element3',2000)
insert into @tt(name,id)values ('element4',2000)


;WITH CTE AS
(
select ROW_NUMBER()OVER(Partition by ID ORDER BY ID,name) RN, * from @tt 

)
select NAME,ID from CTE
where RN = 1
UNION ALL
select 'Others' as NAME,SUM(id) as ID 
from CTE
where RN >1