MSSQL PIVOT 行转列

CREATE TABLE [dbo].[user](
    [id] [int] IDENTITY(1,1) NOT NULL,
    [name] [varchar](50) COLLATE Chinese_PRC_CI_AS NULL
)


CREATE TABLE [dbo].[score](
    [user_id] [int] NULL,
    [kemu] [varchar](50) COLLATE Chinese_PRC_CI_AS NULL,
    [fengshu] [float] NULL
)

方法一:pivot

 SELECT name,[yuwen],[shuxue],isnull([yingyu],0) FROM dbo.score inner join dbo.[user] on id=user_id PIVOT (
    SUM(fengshu) FOR [kemu] IN ([yuwen],[shuxue],[yingyu])
) AS T 

方法二:case when 

select name,
       sum(case kemu when 'yuwen' then (fengshu) else 0 end ) as 'yuwen',
       sum(case kemu when 'shuxue' then (fengshu) else 0 end ) as 'shuxue',
       sum(case kemu when 'yingyu' then (fengshu) else 0 end ) as 'yingyu'
from score inner join dbo.[user] on id=user_id group by name