zoukankan      html  css  js  c++  java
  • 使用物化视图的方式进行表级数据同步示例

    1.源端创建表及物化视图

    BYS@bys1>conn bys/bys
    Connected.
    BYS@bys1>select * from user_role_privs;
    USERNAME                       GRANTED_ROLE                   ADM DEF OS_
    ------------------------------ ------------------------------ --- --- ---
    BYS                            DBA                            NO  YES NO
    创建表及物化视图
    BYS@bys1>create table test5(a int primary key);
    Table created.
    BYS@bys1>create materialized view log on test5;
    Materialized view log created.
    BYS@bys1>select * from tab where tname like '%TEST5%';
    TNAME                          TABTYPE  CLUSTERID
    ------------------------------ ------- ----------
    TEST5                          TABLE
    RUPD$_TEST5                    TABLE
    MLOG$_TEST5                    TABLE
    ################################################

    2.目标端:创建数据链

    SYS@bys2>conn bys/bys
    Connected.
    BYS@bys2>select * from user_role_privs;
    USERNAME   GRANTED_ROLE    ADMIN_ DEFAUL OS_GRA
    ---------- --------------- ------ ------ ------
    BYS        DBA             NO     YES    NO
    BYS@bys2>create database link bys1 connect to bys identified by bys using 'bys1';
    Database link created.
    BYS@bys2>create materialized view test5 refresh fast start with sysdate next sysdate+1/(1440*60) with primary key as select * from test5@bys1;
    Materialized view created.

    BYS@bys2>select * from tab;
    TNAME                                                        TABTYPE         CLUSTERID
    ------------------------------------------------------------ -------------- ----------
    TEST                                                         TABLE
    TEST5                                                        TABLE
    BYS@bys2>select * from test5;
    no rows selected
    BYS@bys2>desc test5;
     Name                                                  Null?    Type
     ----------------------------------------------------- -------- ------------------------------------

     A                                                     NOT NULL NUMBER(38)

    ###################################

    3.数据同步测试:

    源端:

    BYS@bys1>set time on
    14:12:09 BYS@bys1>select * from test5;
    no rows selected
    14:12:27 BYS@bys1>insert into test5 values(111);
    1 row created.
    14:12:36 BYS@bys1>commit;
    Commit complete.
    14:12:37 BYS@bys1>select * from test5;
             A
    ----------
           111
    目标端:

    14:12:16 BYS@bys2>select * from test5;
    no rows selected
    14:12:18 BYS@bys2>
    14:12:45 BYS@bys2>select * from test5;

             A
    ----------
           111
    14:12:46 BYS@bys2>s


  • 相关阅读:
    Javascript的调试利器:Firebug使用详解
    ASP.NET URL Rewriter 技术
    asp读取xml
    怎样提高WebService性能大数据量网络传输处理
    .net实现URL重写
    VS2005中,创建新网站ASP.NET,没有解决方案
    asp.net架构之请求处理过程:HttpModule,HttpHandler
    在应用程序级别之外使用注册为 allowDefinition='MachineToApplication' 的节是错误的
    正则表达式基础知识
    asp.net用url重写URLReWriter实现任意二级域名
  • 原文地址:https://www.cnblogs.com/james1207/p/3322886.html
Copyright © 2011-2022 走看看