一、双向复制节点2配置：
1）添加附加的redolog信息
DBLOGIN USERID ogg, PASSWORD ogg
ADD TRANDATA scott.*
2)配置extract
GGSCI (cuug97) 11> EDIT PARAMS EORA_1
EXTRACT EORA_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
USERID ogg, PASSWORD ogg
TRANLOGOPTIONS EXCLUDEUSER ogg （双向复制的配置关键）
EXTTRAIL ./dirdat/aa
TABLE scott.*;
GGSCI (cuug97) 11> ADD EXTRACT EORA_1, TRANLOG, BEGIN NOW
EXTRACT added.
GGSCI (cuug97) 12> ADD EXTTRAIL ./dirdat/aa, EXTRACT EORA_1, MEGABYTES 5
EXTTRAIL added.
GGSCI (cuug97) 13> START EXTRACT EORA_1
3）配置pump进程
GGSCI (cuug97) 15> EDIT PARAMS PORA_1
EXTRACT PORA_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
PASSTHRU
RMTHOST cuug95, MGRPORT 7809
RMTTRAIL ./dirdat/pa
TABLE scott.*;
GGSCI (cuug97) 16> ADD EXTRACT PORA_1, EXTTRAILSOURCE ./dirdat/aa
EXTRACT added.
GGSCI (cuug97) 17> ADD RMTTRAIL ./dirdat/pa, EXTRACT PORA_1, MEGABYTES 5
RMTTRAIL added.
GGSCI (cuug97) 18> START EXTRACT PORA_1
4、第一节点（原来的源数据库）
1、配置checkpoint
GGSCI (cuug95) 1> EDIT PARAMS ./GLOBALS
CHECKPOINTTABLE ogg.ggschkpt
GGSCI (cuug95) 1> exit
GGSCI (cuug95) 1> DBLOGIN USERID ogg, PASSWORD ogg
Successfully logged into database.
GGSCI (cuug95) 2> ADD CHECKPOINTTABLE
2、配置replicate
GGSCI (cuug95) 4> EDIT PARAM RORA_1
REPLICAT RORA_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
USERID ogg, PASSWORD Ogg
HANDLECOLLISIONS
ASSUMETARGETDEFS
DISCARDFILE ./dirrpt/RORA_aa.DSC, PURGE
MAP scott.*, TARGET scott.*;
GGSCI (cuug95) 4> ADD REPLICAT RORA_1, EXTTRAIL ./dirdat/pa
GGSCI (cuug95) 6> START REPLICAT RORA_1
