sql-case列转行

1:对列进行逻辑判断

select ID,Score,

case

 when Score>=90 then 'A'

 when Score>=80 then 'B'

 when Score>=70 then 'C'

 when Score>=60 then 'D'

 when Score>=50 then 'E'

  end

from dbo.Scores

　　

 

2:列转行

如果列名车位,某某,那么分数列

select stuNo,

sum(case when Subject='生物' then Score end) as 生物,

sum(case when Subject='数学' then Score end) as 数学,

sum(case when Subject='英语' then Score end) as 英语,

sum(case when Subject='语文' then Score end) as 语文

  from dbo.Scores group by StuNo