后台批量更新安全库存等信息

创建无数据临时表

create table zhang_ as

select ima01,ima27,ima271 from ima_file where 1=2

批量更新

update ima_file a set a.ima27= (select b.ima27 from zhang_ b where b.ima01=a.ima01),

a.ima271=( select b.ima271 from zhang_ b where b.ima01=a.ima01)

where a.ima01 in (select ima01 from zhang_)

验证数据

select a.ima01,a.ima27,a.ima271,b.ima27,b.ima271 from zhang_ b,ima_file a

where a.ima01=b.ima01

删除临时表

drop table zhang_

update ima_file a set (a.ima27,a.ima271) = (select b.ima27,b.ima271 from zhang b where b.ima01=a.ima01 ) where .....