与动态列SQL枢

Question

我已经张贴了我的问题在链接sql group by order by and top in a same query为我的请求，结果是，

SELECT 
    [Company Name], 
    [Designation], 
    [comp id], 
    [Employee Name] 
FROM 
(
    SELECT emp.[Emp ID], 
     comp.[Company Name], 
     design.[Designation], 
     emp.[comp id], 
     emp.[Employee Name], 
     ROW_NUMBER() OVER (PARTITION BY emp.[Comp ID], emp.[Design ID] ORDER BY emp.[Comp ID] desc, emp.[Design ID] desc, emp.[Emp ID] desc) RowNum 
    from employee as emp 
     join designation as design on design.[Design ID]=emp.[Design ID] 
     join company as comp on comp.[Comp ID]=emp.[Comp ID] 
) a 
WHERE RowNum <=2 

任何人都可以帮我提前

Answer 1

为支点此查询，谢谢你在你的列表中有很多employess（你的评论），你不需要它是动态的。有规律的转动应该做的伎俩：

select [Company Name],Emp1,Emp2,Emp3,Emp4 from (
    SELECT 
     [Company Name], 
     [Employee Name], 
     'Emp' + cast(ROW_NUMBER() OVER (PARTITION BY [Comp ID] ORDER BY [Design ID], [Emp ID] desc) as char(2)) as RowNum 
    FROM 
    (
     SELECT emp.[Emp ID], 
      comp.[Company Name], 
      design.[Designation], 
      emp.[Design ID], 
      emp.[comp id], 
      emp.[Employee Name], 
      ROW_NUMBER() OVER (PARTITION BY emp.[Comp ID], emp.[Design ID] ORDER BY emp.[Comp ID] desc, emp.[Design ID] desc, emp.[Emp ID] desc) RowNum 
     from employee as emp 
      join designation as design on design.[Design ID]=emp.[Design ID] 
      join company as comp on comp.[Comp ID]=emp.[Comp ID] 
    ) a 
    WHERE RowNum <=2 
) as pivotdata 
pivot (max([Employee Name]) for [RowNum] in (Emp1,Emp2,Emp3,Emp4)) as P