SQL转换表查询

Question

我得到了转化的表看起来像这样

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

到这是一个问题：

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

我怎样才能做到这一点？预先感谢您的帮助。

Answer 1

你想要每种颜色和大小的排列？

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