Oracle：跨數據庫跨版本跨平臺，進行高級複製

物化視圖複製的設置

主站點：prod

物化視圖站點：emrep

主機名：dbserver

複製用戶：hr

檢查初始化參數

SQL> connect sys/oracle @prod as sysdba ;

已鏈接。

SQL> show parameter global_names ;

NAME TYPE VALUE

 

global_names boolean TRUE

SQL> show parameter job;

NAME TYPE VALUE

 

job_queue_PRocesses integer 20

SQL> select * from global_name ;

GLOBAL_NAME

 

prod

SQL>

SQL> connect sys/oracle@emrep as sysdba ;

已鏈接。

SQL> show parameter global_names ;

NAME TYPE VALUE

 

global_names boolean TRUE

SQL> show parameter job;

NAME TYPE VALUE

 

job_queue_processes integer 10

SQL> select * from global_name ;

GLOBAL_NAME

 

emrep

SQL>

檢查全局數據庫名稱

SQL> connect hr/hr@emrep ;

已鏈接。

SQL> select * from hr.employees @prod ;

...

SQL>

SQL> connect system/oracle@emrep;

已鏈接。

SQL> select owner,db_link from all_db_links ;

OWNER DB_LINK

 

SYS prod

PUBLIC prod

SQL> connect system/oracle@prod;

已鏈接。

SQL> select owner,db_link from all_db_links ;

OWNER DB_LINK

 

SYS emrep

PUBLIC emrep

SQL>

創建主體站點

SQL> connect system/oracle@prod ;

已鏈接。

SQL>

--創建複製管理用戶repadmin 並受權

CREATE USER repadmin IDENTIFIED BY repadmin;

BEGIN

DBMS_REPCAT_ADMIN.GRANT_ADMIN_ANY_SCHEMA (username => 'repadmin');

END;

/

GRANT COMMENT ANY TABLE TO repadmin;

GRANT LOCK ANY TABLE TO repadmin;

GRANT SELECT ANY DICTIONARY TO repadmin;

--註冊傳播用戶並受權

BEGIN

DBMS_DEFER_SYS.REGISTER_PROPAGATOR (username => 'repadmin');

END;

/

--註冊接收用戶

BEGIN

DBMS_REPCAT_ADMIN.REGISTER_USER_REPGROUP (

username => 'repadmin',

privilege_type => 'receiver',

list_of_gnames => NULL);

END;

/

--創建物化視圖站點複製管理員的代理用戶

BEGIN

DBMS_REPCAT_ADMIN.REGISTER_USER_REPGROUP (

username => 'repadmin',

privilege_type => 'proxy_snapadmin',

list_of_gnames => NULL);

END;

/

GRANT CREATE session TO repadmin;

GRANT SELECT ANY TABLE TO repadmin;

--以複製管理員身份登錄到主站點

SQL> CONNECT repadmin/repadmin@prod ;

BEGIN

DBMS_DEFER_SYS.SCHEDULE_PURGE (

next_date => SYSDATE,

interval => 'SYSDATE + 1/24',

delay_seconds => 0);

END;

/

commit;

設置物化視圖站點

SQL> connect system/whoami@emrep ;

--創建物化視圖管理員，並受權

CREATE USER mvadmin IDENTIFIED BY mvadmin;

BEGIN

DBMS_REPCAT_ADMIN.GRANT_ADMIN_ANY_SCHEMA (

username => 'mvadmin');

END;

/

GRANT COMMENT ANY TABLE TO mvadmin;

GRANT LOCK ANY TABLE TO mvadmin;

GRANT SELECT ANY DICTIONARY TO mvadmin;

--創建傳播者，並受權

BEGIN

DBMS_DEFER_SYS.REGISTER_PROPAGATOR (username => 'mvadmin');

END;

/

--創建刷新者，並受權，這裏使用mvadmin 用戶刷新物化視圖

GRANT CREATE SESSION TO mvadmin;

GRANT ALTER ANY MATERIALIZED VIEW TO mvadmin;

--註冊接受者

BEGIN

DBMS_REPCAT_ADMIN.REGISTER_USER_REPGROUP (

username => 'mvadmin',

privilege_type => 'receiver',

list_of_gnames => NULL);

END;

/

--創建PUBLIC 數據庫鏈

CREATE PUBLIC DATABASE LINK db001 USING 'prod';

SQL> CONNECT mvadmin/mvadmin@emrep;

已鏈接。

SQL>CREATE DATABASE LINK prod CONNECT TO repadmin IDENTIFIED BY repadmin;

--創建到主站點上覆制管理員的數據庫鏈

--以傳播者身份登錄物化視圖站點

BEGIN

DBMS_DEFER_SYS.SCHEDULE_PURGE (

next_date => SYSDATE,

interval => 'SYSDATE + 1/24',

delay_seconds => 0,

rollback_segment => '');

END;

/

--設置將修改推入到主站點的job

BEGIN

DBMS_DEFER_SYS.SCHEDULE_PUSH (

destination => 'prod',

interval => 'SYSDATE + 1/24',

next_date => SYSDATE,

stop_on_error => FALSE,

delay_seconds => 0,

parallelism => 0);

END;

/

commit;

創建主體組

--以複製管理員身份登錄複製站點

CONNECT repadmin/repadmin@prod ;

--創建名爲rep_test 的複製組

BEGIN

DBMS_REPCAT.CREATE_MASTER_REPGROUP (

gname => 'reptest');

END;

/

--將複製對象增長到複製組中

BEGIN

DBMS_REPCAT.CREATE_MASTER_REPOBJECT (

gname => 'rep_test',

type => 'TABLE',

oname => 'employees',

sname => 'hr',

use_existing_object => TRUE,

copy_rows => FALSE);

END;

/

--生成複製支持

BEGIN

DBMS_REPCAT.GENERATE_REPLICATION_SUPPORT (

sname => 'hr',

oname => 'employees',

type => 'TABLE',

min_communication => TRUE);

END;

/

--開始複製

BEGIN

DBMS_REPCAT.RESUME_MASTER_ACTIVITY (

gname => 'reptest');

END;

/

commit;

創建物化視圖

CONNECT hr/hr@prod ;

--創建物化視圖日誌表，FAST 刷新方式必需要求創建物化視圖日誌

CREATE MATERIALIZED VIEW LOG ON hr.employees;

--創建複製用戶到主站點代理刷新者的數據庫鏈

CONNECT hr/hr@emrep;

CREATE DATABASE LINK prod CONNECT TO repadmin IDENTIFIED BY repadmin;

--創建物化視圖組

CONNECT mvadmin/mvadmin@emrep ;

--物化視圖組必須和複製站點上的複製組名稱相同

BEGIN

DBMS_REPCAT.CREATE_MVIEW_REPGROUP (

gname => 'reptest',

master => 'prod',

propagation_mode => 'ASYNCHRONOUS');

END;

/

--建立刷新組

BEGIN

DBMS_REFRESH.MAKE (

name => 'mvadmin.rep_refresh',

list => '',

next_date => SYSDATE,

interval => 'SYSDATE + 1/24',

implicit_destroy => FALSE,

rollback_seg => '',

push_deferred_rpc => TRUE,

refresh_after_errors => FALSE);

END;

/

SQL> connect mviewadmin/mviewadmin@emrep ;

已鏈接。

SQL> select *from hr.employees@prod ;

SQL>

 

--建立物化視圖

SQL> CREATE MATERIALIZED VIEW hr.emp_up_view

REFRESH FAST WITH PRIMARY KEY FOR UPDATE

AS SELECT * FROM hr.employees@prod ;