Question

我有以下列的表

id, money, date

我想要一个SQL查询，它返回在两个自定义日期之间计算的sum(amount)，例如

     Date between '2014-1-10' and '2016-3-12' 
     Date between '2015-8-10' and '2017-6-12' 
     Date between '2014-2-10' and '2016-6-12'

结果将与

类似

customWhere    amount
1             20000000$
2             23495000$
3             12940593$

Answer 1

在select case子句中使用groupby

Select  (select case 
        when MyDate between Convert(date,'Some Date') 
                    and Convert(date,'Other Date')  
        then 1 else 2 end) 'Case', 
        SUM(Ammount) 'Sum'
FROM YourTable 
GROUP BY (select case 
        when MyDate between Convert(date,'Some Date') 
                    and Convert(date,'Other Date')  
        then 1 else 2 end)

分组依据 - https://msdn.microsoft.com/en-us/library/ms177673.aspx

案例 - https://msdn.microsoft.com/en-us/library/ms181765.aspx

Answer 2

  select 1 as cn, sum(amount) as sss 
  from table 
  where Date between '2014-1-10' and '2016-3-12'  
union  
  select 2 as cn, sum(amount) as sss 
  from table
  where Date between '2015-8-10' and '2017-6-12' 
...

在一个查询中多个位置

2 个答案: