-- Create database link

create shared database link COPYCITY_BZTOMY

connect to db_A identified by db_A

authenticated by db_B identified by db_B

using '192.168.0.141/orcl';             --说明有两个数据库db_A密码db_A和db_B密码db_B  该SQL语句在db_A中执行,表示在db_A中可以使用b_B中的表

select * from b_djb@COPYCITY_BZTOMY   --假设表b_djb在db_B库中,那么我们在db_A 库中执行以上SQL语句,检查是否能正常查询db_B中的数据

--创建临时的 商城信息表

--drop table city_scspxxb_temp

truncate table

create global temporary table city_scspxxb_temp as

select *

from city_scsbxxb ;

insert into city_scspxxb_temp select * from city_scsbxxb@COPYCITY_BZTOMY where city_scspxxid=''  --加条件

insert into city_scsbxxb@COPYCITY_BZTOMY select * from city_scspxxb_temp