SQL行专列
一张表
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 |
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