使用物化视图的方式进行数据同步

-- 在source db 上创建物化视图

SQL> conn scott/oracle

SQL> create table test (id int primary key);

Table created.

SQL> create materialized view log on test;

Materialized view log created.

-- 在目标端创建db link

SQL> conn scott/oracle

Connected.

SQL> create database link PREMIUMI connect to scott identified by oracle using 'source_db';

Database link created.

SQL> select * from test@PREMIUMI;

no rows selected

create materialized view test refresh fast start with sysdate next sysdate+1/(1440*60) with primary key as select * from test@PREMIUMI;

SQL> create materialized view test refresh fast start with sysdate next sysdate+1/(1440*60) with primary key as select * from test@PREMIUMI;

Materialized view created.

--测试

source db

SQL> insert into test values (1);

1 row created.

SQL> commit;

Commit complete.

-- target db

SQL> select * from test;

       ID

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        1