Oracle9i和Oracle10g之间有许多的共性，后者向前者兼容。因此这里我们主要介绍Oracle9i和Oracle10g之间能够构建高级复制环境，手动测试的例子。
首先测试两个数据库的连通性:
$ sqlplus "/ as sysdba"
SQL*Plus: Release 9.2.0.4.0 - Production on Tue Oct 31 10:36:31 2006
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
SQL> show parameter glob
NAME TYPE VALUE
------------------------------------ ----------- ---------------------
global_context_pool_size string
global_names boolean TRUE
SQL> select * from global_name;
GLOBAL_NAME
----------------------------------------------------------------------
HSBILL.HURRAY.COM.CN
SQL> exit
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
bash-2.03$ tnsping mars
TNS Ping Utility for Solaris: Version 9.2.0.4.0 - Production on 31-OCT-2006 10:39:41
Copyright (c) 1997 Oracle Corporation. All rights reserved.
Used parameter files:
/opt/oracle/product/9.2.0/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.31.110)(PORT = 1521))) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = mars)))
OK (10 msec)
两个数据库分别创建db link:
9i的数据库:
bash-2.03$ sqlplus repadmin/repadmin
SQL*Plus: Release 9.2.0.4.0 - Production on Tue Oct 31 10:57:49 2006
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
SQL> create public database link "MARS.HURRAY.COM.CN" connect to repadmin identified by repadmin using 'MARS';
Database link created.
SQL> select * from dual@mars;
D
-
X
10g的数据库:
bash-2.03$ sqlplus "/ as sysdba"
SQL*Plus: Release 10.2.0.1.0 - Production on Tue Oct 31 10:15:20 2006
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
SQL> select username from dba_users where username='REPADMIN';
USERNAME#p#
REPADMIN
SQL> connect repadmin/repadmin
Connected.
SQL> select * from tab;
no rows selected
SQL> select * from global_name;
GLOBAL_NAME
--------------------------------------------------------------------------------
MARS.HURRAY.COM.CN
SQL> create public database link "HSBILL.HURRAY.COM.CN" connect to repadmin identified by repadmin using 'HSBILL';
Database link created.
SQL> select * from dual@hsbill;
D
-
X
两个数据库分别创建测试表：
SQL> connect eygle/eygle
Connected.
SQL> create table eygle as select * from v$session;
Table created.
SQL> alter table eygle add (constraint pk_eygle primary key (SADDR));
Table altered.
进行复制创建:
SQL> connect repadmin/repadmin
Connected.
SQL> execute dbms_repcat.create_master_repgroup('rep_910');
PL/SQL procedure successfully completed.
SQL> execute dbms_repcat.create_master_repobject(sname=>'eygle',oname=>'eygle', type=>'table',use_existing_object=>true,gname=>'rep_910',copy_rows=>false);
PL/SQL procedure successfully completed.
SQL> execute dbms_repcat.generate_replication_support('eygle','eygle','table');
PL/SQL procedure successfully completed.
SQL> execute dbms_repcat.add_master_database(gname=>'rep_910',master=>'MARS.HURRAY.COM.CN',use_existing_objects=>true, copy_rows=>false, propagation_mode => 'synchronous');
PL/SQL procedure successfully completed.
SQL> execute dbms_repcat.resume_master_activity('rep_910',true);
PL/SQL procedure successfully completed.
基本测试:
SQL> select count(*) from eygle.eygle;
COUNT(*)
----------
20
SQL> select count(*) from eygle.eygle@mars;
COUNT(*)
----------
20
SQL> delete from eygle.eygle where rownum <11;
10 rows deleted.
SQL> commit;
Commit complete.
SQL> select count(*) from eygle.eygle;
COUNT(*)
----------
10
SQL> select count(*) from eygle.eygle@mars;
COUNT(*)
----------
10
SQL> select * from v$version@mars;
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bi
PL/SQL Release 10.2.0.1.0 - Production
CORE 10.2.0.1.0 Production
TNS for Solaris: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
SQL> select * from v$version;
BANNER
----------------------------------------------------------------
Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
PL/SQL Release 9.2.0.4.0 - Production
CORE 9.2.0.3.0 Production
TNS for Solaris: Version 9.2.0.4.0 - Production
NLSRTL Version 9.2.0.4.0 - Production
SQL>
本例未作全面测试，仅用于说明Oracle9i和Oracle10g之间的高级复制功能上可行。感兴趣的可以关注网站上其他相关的报道
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