
时间字段按年月分组 sql语句怎么写
1个回答
2016-03-01
展开全部
to_char(A,'yyyymm') as A sum(B) group by A
或者用
select to_char(A,'yyyymm') as A,sum(B)over(partition by to_char(A,'yyyymm'))
from table
或者用
select to_char(A,'yyyymm') as A,sum(B)over(partition by to_char(A,'yyyymm'))
from table
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