流复制实验之：Streams_Single_to_single_schames
SQL> alter database rename global_name to testdb.test.lcz.com.cn;
Database altered
SQL> select * from global_name;
GLOBAL_NAME
--------------------------------------------------------------------------------
TESTDB.TEST.LCZ.COM.CN
(3).修改其它参数
修改源库部分参数：
alter system set global_names=true;
alter system set aq_tm_processes=2;
alter system set aq_tm_processes=10;
alter system set logmnr_max_persistent_sessions=1 scope=spfile;
alter system set open_links=4 scope=spfile sid='*';
alter system set db_domain='test.lcz.com.cn' scope=spfile;
alter system set service_names='orcl.test.lcz.com.cn';
修改目标库部分参数：
alter system set global_names=true sid='*';
alter system set aq_tm_processes=2 sid='*';
alter system set aq_tm_processes=10 sid='*';
alter system set logmnr_max_persistent_sessions=1 scope=spfile sid='*';
alter system set open_links=4 scope=spfile sid='*';
alter system set db_domain='test.lcz.com.cn' scope=spfile sid='*';
alter system set service_names='testdb.test.lcz.com.cn' sid='*';
注：有些参数需要重启数据库生效
(4).在源数据库创建到目标数据库的连接
SQL> Create User strmdba Identified By oracle;
User created
SQL> Grant Connect,resource,Dba To strmdba;
Grant succeeded
SQL> conn strmdba/[email protected]
Connected to Oracle Database 10g Enterprise Edition Release 10.2.0.1.0
Connected as strmdba
SQL> create database linktestdb.test.lcz.com.cnconnect to strmdba identified by oracle using 'testdb.test.lcz.com.cn';
Database link created
注意：
dblink名字使用的global_name,不是service_name
(5).在源数据库建source队列
SQL> conn strmdba/[email protected]
Connected to Oracle Database 10g Enterprise Edition Release 10.2.0.4.0
Connected as strmdba
Begin
dbms_streams_adm.set_up_queue(
queue_table => 'source_queue_table',
queue_name => 'source_queue');
End;
/
(6).在源数据库上创建capture进程
Begin
dbms_streams_adm.add_schema_rules(
schema_name => 'bjcnsdba',
streams_type => 'capture',
streams_name => 'source_capture_stream',
queue_name => 'source_queue',
include_dml => True,
include_ddl => True,
include_tagged_lcr => False,
source_database => Null,
inclusion_rule => True);
End;
/
(7).在源数据库上创建传播进程
Begin
dbms_streams_adm.add_schema_propagation_rules(
schema_name => 'bjcnsdba',
streams_name => 'propagation_bjcnsdba',
source_queue_name => 'strmdba.source_queue',
destination_queue_name => '[email protected]',
include_dml => True,
include_ddl => True,
include_tagged_lcr => False,
source_database => 'orcl.test.lcz.com.cn',
inclusion_rule => True);
End;
/
(8).在目标库的orcl上创建接收队列。
SQL> Create User strmdba Identified By oracle;
User created
SQL> Grant Connect,resource,Dba To strmdba;
Grant succeeded
SQL> conn strmdba/[email protected]
Connected to Oracle Database 10g Enterprise Edition Release 10.2.0.1.0
Connected as strmdba
Begin
dbms_streams_adm.set_up_queue(
queue_table => 'target_queue_table',
queue_name => 'target_queue');
End;
/
Select q.Owner, q.Name, t.Queue_Table, t.Owner_Instance
From Dba_Queues q, Dba_Queue_Tables t
Where t.Object_Type = 'SYS.ANYDATA'
And q.Queue_Table = t.Queue_Table
And q.Owner = t.Owner
Order By q.Owner;
OWNER NAME QUEUE_TABLE OWNER_INSTANCE
---------- ------------------------------ ----------------------- --------------
IX STREAMS_QUEUE STREAMS_QUEUE_TABLE 1
IX AQ$_STREAMS_QUEUE_TABLE_E STREAMS_QUEUE_TABLE 1
STRMDBA TARGET_QUEUE TARGET_QUEUE_TABLE 1
STRMDBA AQ$_TARGET_QUEUE_TABLE_E TARGET_QUEUE_TABLE 1
SYS SCHEDULER$_JOBQ SCHEDULER$_JOBQTAB 1
SYS AQ$_SCHEDULER$_JOBQTAB_E SCHEDULER$_JOBQTAB 1
(9).在目标库上建apply进程。
SQL> conn strmdba/[email protected]
Begin
dbms_streams_adm.add_schema_rules(
schema_name => 'bjcnsdba',
streams_type => 'apply',
streams_name => 'target_apply_stream',
queue_name => 'target_queue',
include_dml => True,
include_ddl => True,
include_tagged_lcr => False,
source_database => 'orcl.test.lcz.com.cn',
inclusion_rule => True);
End;
/
(10).在目标库上启动apply进程
Begin
dbms_apply_adm.start_apply(apply_name => 'target_apply_stream');
End;
/
(11).从源库上导出数据
exp strmdba/oracle@orcl_single owner=bjcnsdbaobject_consistent=yfile=bjcnsdba.dmp grants=y rows=y indexes=y statistics=none
(12).在目标库导入数据
imp system/oracle fromuser=bjcnsdba touser=bjcnsdba file=d:\bjcnsdba.dmp constraints=y ignore=y grants=ystreams_instantiation=y
(13).在源库上启动capture:
Begin
dbms_capture_adm.start_capture(capture_name => 'source_capture_stream');
End;
/
(14).验证复制
在源上的bjcnsdba用户下执行DDL和DML操作，在目标库上检查是否同步。
Create Table test3 (Id Int,Name varchar(20));
Insert Into test3
Select 1,'aa' From dual;
Commit;
文章参考：《大话oracle RAC》
遇到的问题：
1.在源数据库上创建capture进程时，报下面的错
Begin
dbms_streams_adm.add_schema_rules(
schema_name => 'bjcnsdba',
streams_type => 'capture',
streams_name => 'source_capture_stream',
queue_name => 'source_queue',
include_dml => True,
include_ddl => True,
include_tagged_lcr => False,
source_database => Null,
inclusion_rule => True);
End;
/
ORA-26665: STREAMS process SOURCE_CAPTURE_STREAM already exists
ORA-06512: at "SYS.DBMS_STREAMS_ADM_UTL_INVOK", line 289
ORA-06512: at "SYS.DBMS_STREAMS_ADM", line 439
ORA-06512: at "SYS.DBMS_STREAMS_ADM", line 397
ORA-06512: at line 2
原因：
capture process SOURCE_CAPTURE_STREAM
已经有匹配的queue_name，不能再用source_queue建source_capture_stream进程
SELECT capture_name, queue_owner, queue_name
FROM dba_capture;
CAPTURE_NAME QUEUE_OWNER QUEUE_NAME
------------------------------ ------------------------------ ------------------------------
SOURCE_CAPTURE_STREAM STRMDBA SOURCE_QUEUE
SELECT owner, name FROM dba_queues
WHERE name = 'SOURCE_QUEUE';
OWNER NAME
------------------------------ ------------------------------
STRMDBA SOURCE_QUEUE
解决：
1.在源数据库新建名称为其它的queue_name,(即不为source_queue)，并改变streams_name（即不为source_capture_stream），避免冲突。
如下：
--在源数据库创建队列source_queue1：
Begin
dbms_streams_adm.set_up_queue(
queue_table => 'source_queue_table1',
queue_name => 'source_queue1');
End;
/
--在源数据库创建capture进程
Begin
dbms_streams_adm.add_schema_rules(
schema_name => 'bjcnsdba',
streams_type => 'capture',
streams_name => 'source_capture_stream1',
queue_name => 'source_queue1',
include_dml => True,
include_ddl => True,
include_tagged_lcr => False,
source_database => Null,
inclusion_rule => True);
End;
/
2.还有就是还可以把STRMDBA用户删除重建，这新这个用户下以前所有创建的进程就都没了。
参考：
ORA-26665 When Creating A Capture Process [ID 279666.1]