SQL转换表查询

Question

我在转换一个看起来像这样的表

时遇到了问题

PropertyName | PropertyValue
---------------------------------
color    red
color    blue
size    big
size    small

进入这个：

Color  | Size
---------------------------------
red   big
red   small
blue   big
blue   small

我怎样才能做到这一点？提前感谢您的帮助。

Answer 1

您想要每种颜色和尺寸的排列吗？

SELECT color, size FROM 
(
select distinct  PropertyValue AS color
from YourTable
where PropertyName = 'color'
) T1
CROSS JOIN 
(
select distinct  PropertyValue AS size
from YourTable
where PropertyName = 'size'
) T2