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表级流复制基本操作

原创 Linux操作系统 作者:sunyudong 时间:2012-06-08 12:33:09 0 删除 编辑

表级流复制基本操作

创建单源流复制数据库

源数据库

创建流复制管理员

CREATE USER STREAMADMIN

    IDENTIFIED BY STREAMADMIN DEFAULT TABLESPACE USERS"

    TEMPORARY TABLESPACE "TEMP"

    ACCOUNT UNLOCK;

GRANT CONNENT TO STREAMADMIN ;

GRANT DBA TO STREAMADMIN ;

 

创建数据库链接

CREATE  DATABASE LINK "DEST"           --数据库链接名,必须在netca中配置过

    CONNECT TO "STREAMADMIN"        --目的数据库时复制管理员

    IDENTIFIED BY "STREAMADMIN"         --目的数据库时复制管理员密码

    USING 'DEST' ;                            --目的数据库名,必须在netca中配置过

 

创建捕捉队列

  dbms_streams_adm.set_up_queue(

    queue_table => '"STREAMADMIN"."TEST$CAPQT"',

    storage_clause => NULL,

    queue_name => '"STREAMADMIN"."TEST$CAPQ"',

    queue_user => '');

 

对要复制的表实例化准备

对所有要复制的表执行

DBMS_CAPTURE_ADM.PREPARE_TABLE_INSTANTIATION(

table_name => 'rep.a'

supplemental_logging => 'keys');               --默认值为key,如果不指定,将采在所有相约束上启用附加日志

添加附加日志

ALTER TABLE "REP"."C" ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY, FOREIGN KEY, UNIQUE INDEX) COLUMNS;

创建传送进程及传输规则

对所有的表执行

  dbms_streams_adm.add_table_propagation_rules(                                  --加入传送规则(自动创建传送进程)

    table_name => '"REP"."A"',                                                 --传送表rep.A

    streams_name => '',                                                        --

    source_queue_name => '"STREAMADMIN"."TEST$CAPQ"',                          --捕捉队列(源)

    destination_queue_name=>"STREAMADMIN"."TEST$APPQ"@DEST',                   --应用队列(目的)

    include_dml => TRUE,                                                       --捕捉dml

    include_ddl => TRUE,                                                       --捕捉dml

    include_tagged_lcr => TRUE,                                                --传输带标签的LCR????

    source_database => 'SOURCE.REGRESS.RDBMS.DEV.US.ORACLE.COM',               --源数据库

    inclusion_rule => TRUE,                                                    --加入正规则集

    and_condition => NULL,                                                     --

    queue_to_queue => TURE);                                                   --10.2 以后为TURE

新目标数据库

创建流复制管理员

CREATE USER STREAMADMIN

    IDENTIFIED BY STREAMADMIN DEFAULT TABLESPACE USERS"

    TEMPORARY TABLESPACE "TEMP"

    ACCOUNT UNLOCK;

GRANT CONNENT TO STREAMADMIN ;

GRANT DBA TO STREAMADMIN ;

创建应用队列

  dbms_streams_adm.set_up_queue(

    queue_table => '"STREAMADMIN"."TEST$APPQT"',        --队列表??

    storage_clause => NULL,                             --

    queue_name => '"STREAMADMIN"."TEST$APPQ"',          --队列名

    queue_user => '');                                  --

 

创建应用进程及应用规则

  dbms_streams_adm.add_table_rules(                                  --创建应用规则(自动创建应用进程)

    table_name => '"REP"."A"',                                        --要应用的表

    streams_type => 'APPLY',                                          --类型

    streams_name => '',                                               --

    queue_name => '"STREAMADMIN"."TEST$APPQ"',                        --应用队列名

    include_dml => TRUE,                                              --包括dml

    include_ddl => TRUE                                            --包括ddl

    include_tagged_lcr => TRUE,                                       --标签不为空也行

    source_database => 'TEST.REGRESS.RDBMS.DEV.US.ORACLE.COM',        --源数据库

    inclusion_rule => TRUE);                                          --加入正规则集

从源数据库导入数据并实例化scn

使用imp数据时加入参数STREAMS_INSTANTIATION=Y

或者得到源数据库的当前scn

select dbms_flashback.get_system_change_number from dual;

 

DBMS_APPLY_ADM.SET_TABLE_INSTANTIATION_SCN(

source_object_name => 'rep.a',

source_database_name => ' TEST.REGRESS.RDBMS.DEV.US.ORACLE.COM ',

instantiation_scn => 1234567);                               --scn

设置标签 (多个应用时,结构复杂时需要)

  dbms_apply_adm.alter_apply(

    apply_name => apply_nm_dqt,     --应用名称,在dba_apply_progress中查看

apply_tag => hextoraw(00));     --00为本机应用标签

 

添加一个新的目标节点

源数据库

加入数据库链接

CREATE  DATABASE LINK "DEST"           --数据库链接名,必须在netca中配置过

    CONNECT TO "STREAMADMIN"        --目的数据库时复制管理员

    IDENTIFIED BY "STREAMADMIN"         --目的数据库时复制管理员密码

    USING 'DEST' ;                            --目的数据库名,必须在netca中配置过

对要复制的表实例化准备

对所有要复制的表执行

DBMS_CAPTURE_ADM.PREPARE_TABLE_INSTANTIATION(

table_name => 'rep.a'

supplemental_logging => 'keys');               --默认值为key,如果不指定,将采在所有相约束上启用附加日志

创建传送进程及传输规则

对所有的表执行

  dbms_streams_adm.add_table_propagation_rules(                                  --加入传送规则(自动创建传送进程)

    table_name => '"REP"."A"',                                                 --传送表rep.A

    streams_name => '',                                                        --

    source_queue_name => '"STREAMADMIN"."TEST$CAPQ"',                           --捕捉队列(源)

    destination_queue_name=>"STREAMADMIN"."TEST$APPQ"@DEST',                   --应用队列(目的)

    include_dml => TRUE,                                                       --捕捉dml

    include_ddl => TRUE,                                                       --捕捉dml

    include_tagged_lcr => TRUE,                                                --传输带标签的LCR????

    source_database => 'SOURCE.REGRESS.RDBMS.DEV.US.ORACLE.COM',               --源数据库

    inclusion_rule => TRUE,                                                    --

    and_condition => NULL,                                                      --

    queue_to_queue => TURE);                                                   --10.2 以后为TURE

新目标数据库

创建流复制管理员

CREATE USER STREAMADMIN

    IDENTIFIED BY STREAMADMIN DEFAULT TABLESPACE USERS"

    TEMPORARY TABLESPACE "TEMP"

    ACCOUNT UNLOCK;

GRANT CONNENT TO STREAMADMIN ;

GRANT DBA TO STREAMADMIN ;

创建应用队列

  dbms_streams_adm.set_up_queue(

    queue_table => '"STREAMADMIN"."TEST$APPQT"',        --队列表??

    storage_clause => NULL,                             --

    queue_name => '"STREAMADMIN"."TEST$APPQ"',          --队列名

    queue_user => '');                                  --

 

创建应用进程及应用规则

  dbms_streams_adm.add_table_rules(                            --创建应用规则(自动创建应用进程)

    table_name => '"REP"."A"',                                  --要应用的表

    streams_type => 'APPLY',                                    --类型

    streams_name => '',                                         --

    queue_name => '"STREAMADMIN"."TEST$APPQ"',                  --应用队列名

    include_dml => TRUE,                                        --包括dml

    include_ddl => TRUE                                   --包括ddl

    include_tagged_lcr => TRUE,                                 --标签不为空也行

    source_database => 'TEST.REGRESS.RDBMS.DEV.US.ORACLE.COM', --源数据库

    inclusion_rule => TRUE);                                    --创建并应用正规则集??

从源数据库导入数据并实例化scn

使用imp数据时加入参数STREAMS_INSTANTIATION=Y

或者得到源数据库的当前scn

select dbms_flashback.get_system_change_number from dual;

 

DBMS_APPLY_ADM.SET_TABLE_INSTANTIATION_SCN(

source_object_name => 'rep.a',

source_database_name => ' TEST.REGRESS.RDBMS.DEV.US.ORACLE.COM ',

instantiation_scn => 1234567);                               --scn

其他:

 设置标签 多个应用时,结构复杂时需要

  dbms_apply_adm.alter_apply(

    apply_name => apply_nm_dqt, --??

apply_tag => hextoraw(00));


添加一个新的复制表

源数据库

添加附加日志

ALTER TABLE "REP"."C" ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY, FOREIGN KEY, UNIQUE INDEX) COLUMNS;

实例化准备

DBMS_CAPTURE_ADM.PREPARE_TABLE_INSTANTIATION(

table_name => 'rep.c',

supplemental_logging => 'keys');

添加捕捉规则

dbms_streams_adm.add_table_rules(

    table_name => '"REP"."C"',

    streams_type => 'CAPTURE',

    streams_name => '"TEST$CAP"',

    queue_name => '"STREAMADMIN"."TEST$CAPQ"',

    include_dml => TRUE,

    include_ddl => TRUE,

    include_tagged_lcr => TRUE,

    source_database => 'TEST.REGRESS.RDBMS.DEV.US.ORACLE.COM',

    inclusion_rule => TRUE);

添加传送规则

dbms_streams_adm.add_table_propagation_rules(

    table_name => '"REP"."C"',

    streams_name => '',

    source_queue_name => '"STREAMADMIN"."TEST$CAPQ"',

    destination_queue_name => '"STREAMADMIN"."TEST$APPQ"@RMAN.REGRESS.RDBMS.DEV.US.ORACLE.COM',

    include_dml => TRUE,

    include_ddl => TRUE,

    include_tagged_lcr => TRUE,

    source_database => 'TEST.REGRESS.RDBMS.DEV.US.ORACLE.COM',

    inclusion_rule => TRUE,

    and_condition => NULL,

    queue_to_queue => TRUE);

目标数据库

导入对象并实例化

使用imp数据时加入参数STREAMS_INSTANTIATION=Y(生效)

或者得到源数据库的当前scn

select dbms_flashback.get_system_change_number from dual;

 

DBMS_APPLY_ADM.SET_TABLE_INSTANTIATION_SCN(

source_object_name => 'rep.c',

source_database_name => ' TEST.REGRESS.RDBMS.DEV.US.ORACLE.COM ',

instantiation_scn => 1234567);                               --scn

添加应用规则

  dbms_streams_adm.add_table_rules(

    table_name => '"REP"."C"',

    streams_type => 'APPLY',

    streams_name => '',

    queue_name => '"STREAMADMIN"."TEST$APPQ"',

    include_dml => TRUE,

    include_ddl => TRUE,

    include_tagged_lcr => TRUE,

    source_database => 'TEST.REGRESS.RDBMS.DEV.US.ORACLE.COM',

inclusion_rule => TRUE);

 

其他

 

搭建表级流复制系统代码

DECLARE

tables DBMS_UTILITY.UNCL_ARRAY;

BEGIN

tables(1) := 'rep.a';                           --要复制的表名

tables(2) := 'rep.b';                           --要复制的表名

DBMS_STREAMS_ADM.MAINTAIN_TABLES(

table_names => tables,                          --要复制的表对象集

source_directory_object => NULL,

destination_directory_object => NULL,

source_database => ' TEST ',                    --源数据库

destination_database => 'RMAN ',              --目标数据库

perform_actions => false,                       --立即执行还是生成脚本

script_name => 'configure_rep.sql',         --生成脚本的名称

script_directory_object => 'SCRIPT_DIRECTORY',  --生成脚本的目录(由create directory .. as ..创建)

bi_directional => false,                        --是否使用多源复制

include_ddl => false,                           --是否包括DDL语句

instantiation => DBMS_STREAMS_ADM.INSTANTIATION_TABLE_NETWORK);

END;

/

 

启用/禁用捕捉进程

  dbms_capture_adm.start_capture(

capture_name => '"TEST$CAP"');

 

dbms_capture_adm.stop_capture(

capture_name => '"TEST$CAP"');

 

启用/禁用传输

  dbms_aqadm.enable_propagation_schedule(

    queue_name => '"STREAMADMIN"."RMAN$CAPQ"',

    destination => 'TEST.REGRESS.RDBMS.DEV.US.ORACLE.COM',

destination_queue => '"STREAMADMIN"."RMAN$APPQ"');

 

  dbms_aqadm.disable_propagation_schedule(

    queue_name => '"STREAMADMIN"."TEST$CAPQ"',

    destination => 'CHARGE.REGRESS.RDBMS.DEV.US.ORACLE.COM',

destination_queue => destn_q);

启用/禁用应用进程

  dbms_apply_adm.start_apply(

apply_name => apply_nm_dqt);

 

  dbms_apply_adm.stop_apply(

apply_name => apply_nm_dqt);

 

加入负规则集

(不传送本机应用标签的LCR

  dbms_streams_adm.add_table_propagation_rules(

    table_name => '"REP"."A"',

    streams_name => '',

    source_queue_name => '"STREAMADMIN"."TEST$CAPQ"',

    destination_queue_name => '"STREAMADMIN"."TEST$APPQ"@RMAN.REGRESS.RDBMS.DEV.US.ORACLE.COM',

    include_dml => TRUE,

    include_ddl => FALSE,

    include_tagged_lcr => TRUE,

    source_database => 'TEST.REGRESS.RDBMS.DEV.US.ORACLE.COM',

   inclusion_rule => FALSE,

   and_condition =>  ':lcr.get_tag() = HEXTORAW ("00") ',       --00为本机应用进程的标签

    queue_to_queue => true);

 

加入update冲突解决

DECLARE

cols DBMS_UTILITY.NAME_ARRAY;

BEGIN

cols(1) := 'c1';                          --列名

cols(2) := 'c2';                               --列名

DBMS_APPLY_ADM.SET_UPDATE_CONFLICT_HANDLER(

object_name => 'hr.jobs',                      --表名

method_name => 'OVERWRITE',                    --overwrite,discard,maximum,minmum,null

resolution_column => 'job_title',              --

column_list => cols);                          --列集合

END;

/

自定义冲突解决

BEGIN

DBMS_APPLY_ADM.SET_DML_HANDLER(

object_name => 'hr.locations',                          --表名

object_type => 'TABLE',                                 --

operation_name => 'UPDATE',                             --升级冲突

error_handler => false,                                

user_procedure => 'strmadmin.history_dml',              --自定义存储过程 Null取消

apply_database_link => NULL,

apply_name => NULL);

END;

/

自定义存储过程

CREATE OR REPLACE PROCEDURE history_dml(in_any IN ANYDATA)

IS

lcr SYS.LCR$_ROW_RECORD;

rc PLS_INTEGER;

BEGIN

-- Access the LCR

rc := in_any.GETOBJECT(lcr);

-- Insert information about the LCR into the history_row_lcrs table

INSERT INTO strmadmin.history_row_lcrs VALUES

(SYSDATE, lcr.GET_SOURCE_DATABASE_NAME(), lcr.GET_COMMAND_TYPE(),

lcr.GET_OBJECT_OWNER(), lcr.GET_OBJECT_NAME(), lcr.GET_TAG(),

lcr.GET_TRANSACTION_ID(), lcr.GET_SCN(), lcr.GET_COMMIT_SCN,

lcr.GET_VALUES('old'), lcr.GET_VALUES('new', 'n'));

-- Apply row LCR

lcr.EXECUTE(true);

END;/

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