Pivot，Unpivot，Cross Apply？

Question

说我有类似下面的数据和我真正想要的是（枢轴？）AssigedType作为列（处理，监督等）虽然我不认为枢轴是正确的方式，因为我不是汇总任何东西。将涉及三个表：事项，事项专业人员，专业人员），即

Matters.Matters = MattersProfessionals.Matters Professionals.Professionals = Matters.Professionals

matterid    AssignedType    ProfName
27391-0001001   Handling    Skip A. Lawyer
37085-0051001   Handling    Skip A. Lawyer
37085-0051001   Supervising Skip A. Lawyer
18814-0226WO1   Handling    Skip A. Lawyer
37085-0050001   Handling    Skip A. Lawyer
37085-0050001   Supervising Skip A. Lawyer
37085-0053001   Supervising Skip A. Lawyer
37085-0053001   Handling    Skip A. Lawyer
37085-0052001   Handling    Skip A. Lawyer
37085-0052001   Supervising Skip A. Lawyer
18814-0226AU1   Handling    Skip A. Lawyer

期望的输出：

MatterID       Handling        Supervising 
27391-0001001  Skip A. Lawyer  Skip A.Lawyer 
etc...

像枢轴但没有聚合？

Answer 1

Min（）或Max（）也可以是您的枢轴功能的聚合：

SELECT * from (<here the original select goes>) 
AS source
PIVOT 
    (min(ProfName) For AssignedType in ([Handling], [Supervising])) 
AS y;

这会返回一个像

这样的表格

matterid       Handling        Supervising     
-------------  --------------  --------------  
27391-0001001  Skip A. Lawyer  (null)          
37085-0051001  Skip A. Lawyer  Skip A. Lawyer  
...