Sql server 在Where子句中排名

可以在Where子句中使用Rank吗。下面是我打算使用的代码

  Select 
   DebtorID
  ,Rank () over (partition by DebtorID order by BalanceDate) as RankBalanceDate
  ,BalanceDate
  ,Balance
  ,UnallocatedBalance
  ,Overdue
From Debtorbalances
Where Rank () Over (Partition by DebtorID order by BalanceDate) = 1

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不，不可能

窗口函数只能出现在SELECT或ORDER BY子句中

您可以使用

CTE

或子查询来执行此操作：

使用

CTE

：

with Cte AS(
    Select 
        DebtorID
        ,rank() over (partition by DebtorID order by BalanceDate) as RankBalanceDate
        ,BalanceDate
        ,Balance
        ,UnallocatedBalance
        ,Overdue
    From Debtorbalances
)
select * 
from Cte
where 
    RankBalanceDate = 1

使用子查询：

select *
from (
    select 
        DebtorID
        ,rank() over (partition by DebtorID order by BalanceDate) as RankBalanceDate
        ,BalanceDate
        ,Balance
        ,UnallocatedBalance
        ,Overdue
    From Debtorbalances
)t
where 
    RankBalanceDate = 1