OGG 简单DML同步

<strong>一、源端进程配置</strong><br /> 添加本地抓取进程exta<br /> add ext exta, tranlog, begin now<br /> 指定抓取日志到指定路径下<br /> add exttrail /u01/app/oracle/product/ogg_class="lazy" data-src/dirdat/ra,ext exta , MEGABYTES 20<br /> <br /> <br /> 添加远程投递dpea进程<br /> ADD EXTRACT dpea, EXTTRAILSOURCE /u01/app/oracle/product/ogg_class="lazy" data-src/dirdat/ra<br /> 指定dpea进程投递目的地<br /> add rmttrail /u01/app/oracle/product/ogg/dirdat/ra,ext dpea, MEGABYTES 20<br /> <br /> <strong>二、expdp/impdp 进行表初始化</strong><br /> 源端：<br /> 查看当前SCN号<br /> select current_scn from v$database;<br /> <br /> <br /> CURRENT_SCN<br /> -----------<br /> &nbsp; &nbsp; 1081055<br /> <br /> <br /> 以sys用户登录，并授权读写给ogg<br /> create directory ogg_dir as '/u01/app/oracle/product/ogg_class="lazy" data-src/ogg_dir';<br /> grant read，write on directory ogg_dir to ogg;<br /> <br /> <br /> 导出数据<br /> expdp &nbsp;ogg/ogg directory=ogg_dir dumpfile=ogg1.dmp &nbsp;logfile=oggtest1.log tables=ogg.oggtest1 flashback_scn=1081055<br /> <br /> <br /> 目标端：<br /> 以sys用户登录，并授权读写给ogg<br /> create directory ogg_dir as '/u01/app/oracle/product/ogg/ogg_dir';<br /> grant read，write on directory ogg_dir to ogg;<br /> <br /> <br /> 导入数据<br /> &nbsp;impdp ogg/ogg directory=ogg_dir dumpfile=ogg1.dmp logfile=oggtest1.log tables=oggtest1 table_exists_action=replace;<br /> <br /> <strong>三、目标端进程配置</strong><br /> 添加repa进程<br /> add rep repa, exttrail /u01/app/oracle/product/ogg/dirdat/ra, nodbcheckpoint<br /> <br /> 编辑repa进程<br /> edit param repa<br /> replicat repa<br /> userid ogg, password ogg<br /> reperror default,abend<br /> discardfile /u01/app/oracle/product/ogg/dirrpt/repa.dsc,append, megabytes 10<br /> assumetargetdefs<br /> dynamicresolution<br /> map ogg.oggtest1, target ogg.oggtest1 ;<br /> <br /> 启用repa进程解析trail文件<br /> start &nbsp;repa aftercsn 1085091<br /> <br /> 本例中是利用了OGG中dump进程将数据投递到目的端，也可以直接使用extact进程投递到目的端，但是各有利弊。<br />