SQL行专列

一张表

查询结果为
1
2
3
4
5
--行转列
select  years,(select amount from Tb_Amount as A where month=1 and A.years=Tb_Amount.years)as m1,
(select amount from Tb_Amount as A where month=2 and A.years=Tb_Amount.years)as m2,
(select amount from Tb_Amount as A where month=3 and A.years=Tb_Amount.years)as m3
from  Tb_Amount group by  years

 

SQL行专列,古老的榕树,5-wow.com

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