--tryselect matercode,sum(maternum) as maternum,materindate,depot
from
(
select * from A
union all
select * from B
)as tmp
group by matercode,materindate,depot
from
(
select * from A
union all
select * from B
)as tmp
group by matercode,materindate,depot
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货