- 创建dblink
-- 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
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检查dblink是否可用
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
- 如果有clob字段创建临时表,先赋值给临时表,最后将临时表赋值给目标表,如果没有clob字段直接跳到最后一步操作
--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 ;
- 将数据导入到临时表中
insert into city_scspxxb_temp select * from city_scsbxxb@COPYCITY_BZTOMY where city_scspxxid='27405' --加条件
- 将临时表的数据导入目标库
insert into city_scsbxxb@COPYCITY_BZTOMY select * from city_scspxxb_temp