1.准备
软件
源端oracle、ogg
目标端ogg、ogg插件、datahub、maxcompute
数据
erp表结构，包括约束信息
2.配置
参考资料：https://help.aliyun.com/document_detail/170232.html?spm=a2c4g.11186623.6.597.24833012U8cFNr
源端OGG：
抽取
ADD EXTRACT ext_erp1, TRANLOG, BEGIN now
ADD EXTTRAIL ./dirdat/er,EXTRACT ext_erp1
投递
ADD EXTRACT dp_erp1,EXTTRAILSOURCE ./dirdat/er
ADD EXTTRAIL /oggadapter/dirdat/er, EXTRACT DP_ERP1
start EXTRACT dp_erp1
目标端
javaue
mapping
topic
进程
add extract erp1, exttrailsource ./dirdat/er