Question

我只想显示每个ID记录少于10个条目的ID，ID可能有多个值，如下面的数据所示。我想要我已经尝试过这个查询，但它也选择了ID 2的记录

   select ID, Name ,LastName ,PaymentDate,POSITION
    From ( select ID, Name ,LastName ,PaymentDate    ,ROW_NUMBER() OVER(PARTITION BY ID ORDER BY PaymentDate DESC) AS POSITION 

     )
     where Position < 10

任何帮助，请

 ID   Name LastName PaymentDate
  1    John Abraham  2015-05-08
  1    John Abraham  2014-05-08 
  1    John Abraham  2013-05-08
  1    John Abraham  2012-05-08
  1    John Abraham  2011-05-08
  1    John Abraham  2010-05-08
  ------------------------------
  2    Adam White    2015-05-08
  2    Adam White    2014-05-08 
  2    Adam White    2013-05-08
  2    Adam White    2012-05-08
  2    Adam White    2011-05-08
  2    Adam White    2010-05-08
  2    Adam White    2009-05-08
  2    Adam White    2008-05-08 
  2    Adam White    2007-05-08
  2    Adam White    2006-05-08
  2    Adam White    2005-05-08
  2    Adam White    20004-05-08

Answer 1

Min sum(abs(x))
s.t. A*x = 0,
     lb <= x <= ub

Answer 2

您需要count(*)，而不是row_number()：

select ID, Name, LastName, PaymentDate
from (select ID, Name, LastName, PaymentDate,
             count(*) over (partition by ID) as cnt 
      from . . .
     ) t
where cnt < 10;

这会显示行（您的问题建议是您想要的行）。如果您只想要ID，那么聚合更好：

select id
from t
group by id
having count(*) < 10;

Answer 3

请尝试：

Select ID, Name, LastName, PaymentDate
  From MyTable
 Where ID in (Select ID From MyTable Group By ID Having Count(*) < 10);

选择sql server少于10个条目的记录

3 个答案: